Old city has time for top quality (3,4)
I believe the answer is:
the best
'top quality' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
'old city has time' is the wordplay.
'old city' becomes 'Thebes' (ancient Greek city).
'has' is a charade indicator (letters next to each other).
'time' becomes 't' (abbreviation).
'thebes'+'t'='THE BEST'
'for' is the link.
Can you help me to learn more?
(Another definition for the best that I've seen is " second to none".)