Fruit — bird (4)
I believe the answer is:
kiwi
This clue is a double definition.
'fruit' is the first definition.
(I know that kiwi is a fruit)
'bird' is the second definition.
(kiwi is a kind of bird)
(Other definitions for kiwi that I've seen before include "New Zealand bird that does not fly" , "Hairy fruit with green flesh" , "Flightless NZ bird" , "N Zealand bird" , "apteryx" .)