What did ewe say? (3)
I believe the answer is:
baa
'what did ewe say?' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for baa that I've seen before include "Statement from those flocking" , "to Heathrow, the operators" , "Sound of a lamb" , "How one of the fold may sound" , "Cry of lamb, sounds angry" .)