Eland, say (8)
I believe the answer is:
antelope
'eland say' is the definition.
(eland is a kind of antelope)
This is all the clue.
(Other definitions for antelope that I've seen before include "fast buck, perhaps?" , "Springbok, perhaps" , "One leapt badly on the graceful animal" , "Swift deer-like animal" , "A graceful gazelle from Africa" .)