Renault crashed -- out of gear (7)
I believe the answer is:
neutral
'gear' is the definition.
(I've seen this before)
'renault crashed' is the wordplay.
'crashed' indicates an anagram.
'renault' anagrammed gives 'NEUTRAL'.
'out of' is the link.
(Other definitions for neutral that I've seen before include "Impartial; colour" , "Supporting neither side" , "A runlet? (anag)" , "Not allied to either side" , "Run late (anag)" .)