Ancient city - one having new area with restricted parking (6)
I believe the answer is:
delphi
'ancient city' is the definition.
(I know that Delphi is a ancient city)
'area with restricted parking' is the wordplay.
'area' becomes 'Delhi' (Delhi is an example).
'with' indicates putting letters inside.
'restricted parking' becomes 'p' (abbreviation on road signs. I am not sure about the 'restricted' bit.).
'delhi' enclosing 'p' is 'DELPHI'.
'one having new' acts as a link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for delphi that I've seen before include "Place of Greek oracle" , "Scene of ancient oracle" , "Dead ringer" , "Scene of Greek oracle" , "Religious sanctuary of ancient Greece (with an Oracle)" .)