Go around to an ancient city (4)
I believe the answer is:
tour
'go' is the definition.
(synonyms)
'to an ancient city' is the wordplay.
'an ancient city' becomes 'ur' (ancient Sumerian city state).
'to'+'ur'='TOUR'
'around' is the link.
(Other definitions for tour that I've seen before include "Trip visiting several places" , "Pastoral people of East Africa" , "Journey to visit places of interest" , "Rout on excursion" , "Travel around" .)