Old Paris characters seen in motorway approach (4,4)
I believe the answer is:
slip road
'in motorway approach' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'old paris characters' is the wordplay.
'characters' is an anagram indicator.
'old'+'paris'='oldparis'
'oldparis' is an anagram of 'SLIP-ROAD'.
'seen' is the link.
Can you help me to learn more?
(Other definitions for slip road that I've seen before include "Way to leave or join a motorway" , "way to access motorway" , "Joining lane" , "Motorway exit or entrance" , "Motorway approach or exit" .)