Arrested perhaps and recovered car parts (8)
I believe the answer is:
retreads
'recovered car parts' is the definition.
The definition and answer can be both man-made objects as well as being plural nouns.
Perhaps you can see an association between them that I don't see?
'arrested perhaps' is the wordplay.
'perhaps' indicates an anagram.
'arrested' anagrammed gives 'RETREADS'.
'and' acts as a link.
Can you help me to learn more?
(Other definitions for retreads that I've seen before include "They gain fresh employment" , "Serrated like remoulded tyres" , "Serrated like tyres restored for use" , "recovered tyres" , "Arrested over resurfaced tyres" .)