His camera captures fiddle (4)
I believe the answer is:
scam
'fiddle' is the definition.
(I've seen this in another clue)
'his camera captures' is the wordplay.
'captures' says the answer is hidden in the clue (the answer is trapped within the clue).
'SCAM' can be found hidden inside 'his camera'.
(Other definitions for scam that I've seen before include "Fraud, trick (slang)" , "Swindle (sl.)" , "Fraud, dishonest scheme" , "Fraudulent scheme, swindle" , "Con trick" .)