Graceful antelope (7)
I believe the answer is:
gazelle
'graceful antelope' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for gazelle that I've seen before include "Animal" , "''both / beautiful, one a ...'' (Yeats)" , "Slender antelope" , "Large-eyed antelope" , "Graceful beast" .)