Banged up vehicle parts create din, unfortunately (12)
I believe the answer is:
incarcerated
'banged up' is the definition.
(I've seen this before)
'vehicle parts create din unfortunately' is the wordplay.
'vehicle' becomes 'car' (car is a kind of vehicle).
'parts' means one lot of letters goes inside another (in the sense of cuts or separates).
'unfortunately' is an anagram indicator (a bad or unfortunate spelling).
'create'+'din'='createdin'
'createdin' is an anagram of 'incerated'.
'car' put within 'incerated' is 'INCARCERATED'.
(Other definitions for incarcerated that I've seen before include "Locked up" , "Banged up" , "Imprisoned" .)