Graceful bird (4)
I believe the answer is:
swan
'graceful bird' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for swan that I've seen before include "black, in 7th" , "Large waterbird" , "Stately aquatic bird" , "Sweet name 8 [OF SHAKESPEARE]" , "Shakespeare is called The .... of Avon" .)