Sheepish one? (3)
I believe the answer is:
ewe
'sheepish one?' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for ewe that I've seen before include "Sheep found in sewer" , "One looking sheepish" , "21a [SHEEP]" , "creature" , "Ram's partner?" .)