City of the modern miss? (6)
I believe the answer is:
modena
'city of' is the definition.
The definition suggests a singular noun which matches the answer.
'modern miss?' is the wordplay.
'modern' becomes 'mod' (synonyms).
'miss?' becomes 'ena' (I can't explain this - if you can you should give a lot more credence to this answer).
'mod'+'ena'='MODENA'
'the' acts as a link.
Can you help me to learn more?
(Other definitions for modena that I've seen before include "City of northern Italy" , "Crimson" , "Domestic fancy pigeon" .)