
With the brushing, have a collar on him and keep one hand in the collar, difficult to describe in print, but you need to hold the side of the collar with your hand firmly against his neck. Don't give in on this position and gently brush him with the other hand. If you are doing it correctly, he shouldn't be able to turn his head to nip you.
Feet and claws, that is an other issue, this should have been started when he was a baby, makes life a lot easier. Two methods to try.....sit on the floor with your back against a wall, legs out and slightly apart. Put him on his back between your legs, head towards you, get him used to his feet being felt, comb and clippers brushing against his feet, when he is settled, this may take a few sessions, have a go at clipping a nail. (I am assuming you know how to clip nails). Praise quietly when good.
The best method is to teach him to lay flat, (as in complete side on the floor/table), don't introduce clippers until he understand this and is happy with you holding a stroking his feet.
It can be a bit of a struggle at first, but be kind and firm and he will get used to it.
Hope this helps
Sandra