Graceful horse (4)
I believe the answer is:
arab
'graceful horse' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for arab that I've seen before include "Qatari or Omani, say" , "Fine horse breed" , "Someone from the Middle East or North Africa, perhaps" , "Horse of a breed originating in the Middle East" , "Saudi, e.g." .)