
1) English comic opera 2) Fiction about curse 3) Opera by Gilbert and Sullivan 4) Opera set in England
Found on
https://www.crosswordclues.com/clue/ruddigore

Ruddigore; or, The Witch`s Curse, originally called Ruddygore, is a comic opera in two acts, with music by Arthur Sullivan and libretto by W. S. Gilbert. It is one of the Savoy Operas and the tenth of fourteen comic operas written together by Gilbert and Sullivan. It was first performed by the D`Oyly Carte Opera Company at the Savoy Theatre in L.....
Found on
http://en.wikipedia.org/wiki/Ruddigore
No exact match found.