Horsey person? (7)
I believe the answer is:
centaur
'horsey person?' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for centaur that I've seen before include "Mythical man-horse" , "Mythical beast, half horse and half man" , "Mythical semi-equine beast" , "Mythical horseman!" , "Fabulous beast, half man and half horse" .)