Cathedral map resold (not old) (8)
I believe the answer is:
chartres
'cathedral' is the definition.
(French cathedral)
'map resold not old' is the wordplay.
'map' becomes 'chart' (synonyms).
'not' suggests deleting specific letters.
'resold' with 'old' removed is 'res'.
'chart'+'res'='CHARTRES'
(Other definitions for chartres that I've seen before include "French town noted for its Gothic cathedral" , "City southwest of Paris - arch rest (anag)" , "French city - her carts (anag)" , "cathedral location" , "City and Gothic cathedral in N France" .)