City of madrigals? (4)
I believe the answer is:
riga
'city' is the definition.
(Riga is an example)
'of madrigals?' is the wordplay.
'of' says the answer is hidden in the clue.
'RIGA' can be found hidden inside 'madrigals'.
(Other definitions for riga that I've seen before include "capital in Europe" , "port in Latvia" , "trading centre in Latvia" , "Latvian capital" , "Baltic capital city" .)