Catch wrong part (4)
I believe the answer is:
trap
'catch' is the definition.
(I know that trap is a more specific form of the action catch)
'wrong part' is the wordplay.
'wrong' indicates anagramming the letters.
'part' is an anagram of 'TRAP'.
(Other definitions for trap that I've seen before include "Device to catch prey" , "Means of transport - sometimes sprung!" , "Light carriage - it's sometimes sprung!" , "two-wheeler" , "website?" .)