Old city band on the road (4)
I believe the answer is:
tyre
I believe this clue is a double definition.
'old city' is the first definition.
(ancient city)
'band on the road' is the second definition.
(band of rubber around a wheel)
(Other definitions for tyre that I've seen before include "Something with a tread" , "Mediterranean city" , "Pneumatic device on wheel" , "Rubber wheel rim" , "Wheel cover; port" .)