Answer:

pastern

Answer	Crossword Clue
PASTERN	Horse's "instep"
PASTERN	Between fetlock and hoof.
PASTERN	Area between the fetlock and hoof

PASTERN	Part of Dobbin's foot
PASTERN	Part of a cow's foot
PASTERN	Part of a horse's foot
PASTERN	Part just above a horse's hoof
PASTERN	It's between the fetlock and hoof
PASTERN	Ruffian's ankle
PASTERN	Horse foot part