Buck or doe (4)
I believe the answer is:
deer
This clue is a double definition.
'buck' is the first definition.
(buck can mean a male deer)
'doe' is the second definition.
(thesaurus)
(Other definitions for deer that I've seen before include "The males have antlers" , "See 23" , "Bucks and does?" , "Antler-bearing animal" , "Hoofed mammal" .)