Goat with curved horns (4)
I believe the answer is:
ibex
'goat with curved horns' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ibex that I've seen before include "being nimble-footed" , "Large-horned wild goat" , "Mountain animal" , "Come out of an egg" , "Wild goat with large recurved horns" .)