Gear for a new Renault (7)
I believe the answer is:
neutral
'gear' is the definition.
(I've seen this before)
'a new renault' is the wordplay.
'a new' is an anagram indicator.
'renault' with letters rearranged gives 'NEUTRAL'.
'for' is the link.
(Other definitions for neutral that I've seen before include "Not siding with any party" , "trying to keep out of the war" , "Having no personal preference" , "Indifferent; not in gear" , "In which one parks" .)