A new car coat? (7)
I believe the answer is:
respray
'a new car coat?' is the definition.
The definition suggests a verb in its base form which matches the answer.
This is the entire clue.
Can you help me to learn more?
(Other definitions for respray that I've seen before include "Apply a new coat of aerosol paint to (something)" , "One given new coat" , "makeover for estate?" .)