Young giraffe (4)
I believe the answer is:
calf
'young giraffe' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for calf that I've seen before include "Bit of leg" , "Young bovine animal" , "Animal that yields veal" , "A little lower" , "Roo's mum (A. A. Milne)" .)