Trap, catch (5)
I believe the answer is:
snare
I believe this clue is a double definition.
'trap' is the first definition.
(I know that trap can be written as snare)
'catch' is the second definition.
(I know that snare is a type of catch)
(Other definitions for snare that I've seen before include "Animal trap" , "part of a musician's kit" , "Kind of trap, often with noose" , "Wire on drum; trap" , "Loop of wire as trap" .)