Beau for a doe (4)
I believe the answer is:
stag
'beau for a doe' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for stag that I've seen before include "speculator wanting quick profit" , "without female escort" , "Unaccompanied man at party" , "involving men" , "Hart" .)