Door-shutting sound (4)
I believe the answer is:
slam
'door-shutting sound' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for slam that I've seen before include "Criticise - bang - very good result at bridge" , "Winning all (or all but one) of the tricks in bridge" , "big contract" , "Criticise - attack" , "A grand one is 13 tricks" .)