Wheels in an arc, possibly (3)
I believe the answer is:
'wheels' is the definition.
(wheels can informally mean a car)
'an arc possibly' is the wordplay.
'possibly' indicates anagramming the letters.
'arc' with letters rearranged gives 'CAR'.
'in' is the link.
(Other definitions for car that I've seen before include "One for the road?" , "Private vehicle" , "saloon perhaps" , "estate, perhaps" , "Automobile" .)