Crossword Genius

Catch the wrong part (4)

Ross

I believe the answer is:

trap

'catch' is the definition.
(trapping is a kind of catching)

'the wrong part' is the wordplay.
'the wrong' indicates anagramming the letters.
'part' anagrammed gives 'TRAP'.

(Other definitions for trap that I've seen before include "Ambush" , "Vehicle" , "website?" , "Snare, ruse" , "Control ball" .)

I've seen this clue in The Mirror.
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