Large flying mammal (5,3)
I believe the answer is:
fruit bat
'large flying mammal' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for fruit bat that I've seen before include "Flying fox; bait turf (anag.)" , "Flying fox, for example" , "Long-snouted, large-eyed nectar feeder" , "Large flying mammal" .)