A game bird (9)
I believe the answer is:
partridge
'a game bird' is the definition.
(type of game bird)
This is all the clue.
(Other definitions for partridge that I've seen before include "Peculiarly apt girder for the game bird" , "sort of quail" , "Flighty type" , "1st" , "Game bird (in a pear tree?)" .)