Singer performing in Italian club (7)
I believe the answer is:
intoner
'singer' is the definition.
Both the definition and answer are singular nouns.
Perhaps you can see a link between them that I can't see?
'performing in italian club' is the wordplay.
'performing' becomes 'on' (as in being on stage).
'in' indicates putting letters inside.
'italian club' becomes 'inter' (Inter Milan football club).
'on' placed within 'inter' is 'INTONER'.
Can you help me to learn more?
(Other definitions for intoner that I've seen before include "Participant in service" , "eg, a monk?" , "chanter" , "Someone who speaks monotonously - iron net (anag)" .)