Belfry critter (3)
I believe the answer is:
bat
'belfry critter' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for bat that I've seen before include "Nocturnal animal - racket" , "Cricket, table-tennis and baseball implement" , "Cricket implement or flying mammal" , "Small winged mammal, may be vampire" , "Wooden implement for cricket" .)