Try a deep bucket where their eye and head are right in, with special treat, not too give this treat any other time, he gets involved with eating and does not see the clippers coming, also helps muffle the sound.
Someone has to hold the bucket of feed, while you clip. Hope this helps.
: Patience is the key, and do not get angry.
Found this info interesting :aktion033:
Among the animals of equal or greater strength, the horse is the most useful to man because of its superior nervous development, by which it has almost perfect control of its muscles and bones and gives instant response to any outside stimulus. For example, if you strike a horse with a whip you get immediate action of some kind.
It is because of this highly developed nervous organization that the horse has displaced so largely all other beasts of burden among civilized people.
The horse is often given credit for more intelligence than he deserves. Many would even place him on a level of reason with the man. If you have such a notion I want you to get rid of it at once.
THE HORSE CAN NOT REASON. I make this statement, not merely as a theory, but as a fact based upon more than twenty years of close observation and contact with many thousands of horses. In this respect there is a vast gulf between man and horse - a gulf that no horse will ever cross. The horse is superior to man in muscular strength and often in the sense of seeing, hearing and smelling: Man, however, has the great advantage of being able to reason which gives him power over the horse and other animals.
I will show the difference between the instinct of the horse and the reason of man by the following illustration: A man and a horse approach an engine while the steam is hissing from the escape valve. They both through the sense of hearing and seeing, have the knowledge of the engine and the steam conveyed to the brain. The horse, following an instinctive fear that has been handed down to him, tries to get away from the frightful object.
The man sees the same object, and hears the same noise, but is not afraid, because he, by his reasoning power, knows that the escaping steam is an indication of safety by relieving the pressure. In other words, the horse only recognizes objects and actions, while man goes back to the cause and effect.
The fact that a horse does not reason is not only proven by observation, but is also verified by an examination of the horse's brain.It is not only exceedingly small in proportion to the size of the body, as compared to man's brain, but the wrinkles showing the brain development, are almost lacking.
Not only is a horse's brain simple as compared with man's but there is no connection between its several parts. For instance, a horse may fear an object when seen from a certain angle, but be indifferent to the same object when seen from all other angles.
Since the horse cannot talk and does not understand what you say, you will have to make your wants known to him in the first place through the sense of touch. Later this method of communication will be merged into that of voice and motions. As for instance, a touch of the whip will mean at first "Go on"; later a motion of the whip will have the same effect, and at last the word "Get-up" will mean the same thing
When you talk to the horse through the sense of touch, take into consideration the nervous organization. To some horses a sharp stroke of the whip may be very cruel, because of the extreme sensitiveness of their nerves, or being thin skinned as many term it, when to another horse the same stroke would only attract attention.
Since you must talk to your horse through signs, do not become angry if he does not respond, but rather blame, yourself for not having made the signs correctly. Watch the horse's eyes, ears and movements, for they will show you what he intends to do.
The ears forward and not stiff, indicate content. The ears forward and stiff is the horse's method of saying that there is danger ahead. The ears slightly back and not stiff indicate his attention is drawn to the rear; if the ears are back and stiff there is danger to the horse in the rear. The ears turned backward, close to the head, and stiff, indicate a fighting mood.
If the objects are at the side, the ears act separately, each indicating as above. The eyes act in harmony with the ears. The ears stiff and contracted denote fight. If it were possible for you to feel the muscles you would find them hard and tense when the horse is not under control. Whenever the muscles relax and feel soft and pliable it is a sure sign that you have him under control. As you become more expert, the condition of the muscles will convey more to you than anything else.
By these means of expression, the eyes, ears and muscles, the horse will never lie to you; treat him just as frankly and never lie to him. Watch your horse closely that you may know and act accordingly.
You cannot train a horse, and put only half your attention to your work. Be alert and keen, ready to take advantage of any sign of submission or willfulness. Be sure, in beginning a lesson, you thoroughly know just what you want to do, and go directly to that one thing without any wandering from the point. Do just one thing at a time and no more, or you will confuse your horse.
Remember that since the horse cannot reason, you are fixing impressions through his nervous system, which become habits by constant repeating. If impressions are repeated that you do not want, you have a bad habit. If impressions are repeated that you do want, you have a "good" habit. They are neither "good" nor "bad" to the horse, but he does them simply because he has been taught to do so. It is your business to see that the horse knows what you want him to do, and repeat and continue to repeat until the "habit" is fixed.
The greater resistance you get from your horse, the greater the impression made when you gain your point, and the more thoroughly will the good habit be fixed. It is not wise to begin training a colt under eighteen months or two years of age, because his resistance is not great enough and his brain is so pliable that the habits are easily changed thus giving more opportunity for bad habits to be formed.
Moreover do not abuse your horse, for you lose his confidence and madden him. A man ought to be ashamed to abuse an animal, because he does not do what man has learned to do through a long process of reasoning. Remember, the horse acts only from instinct.