Bomb or firework that fails to go off (3)
I believe the answer is:
dud
(Other definitions for dud that I've seen before include "Damp squib" , "Failing in its function" , "Fake -- failure" , "Inoperative" , "Counterfeit article" .)
I believe the answer is:
dud
(Other definitions for dud that I've seen before include "Damp squib" , "Failing in its function" , "Fake -- failure" , "Inoperative" , "Counterfeit article" .)