Carmen or Fidelio? (5)
I believe the answer is:
opera
I believe this clue is a double definition.
'carmen' is the first definition.
(Carmen is an example)
'fidelio?' is the second definition.
(I've seen this in another clue)
(Other definitions for opera that I've seen before include "Eg, Il trovatore" , "La Scala production, perhaps" , "Stage entertainment" , "Eg, The Magic Flute" , "Throw a rope for the musical" .)