In bed lies stricken opera composer (7)
I believe the answer is:
delibes
'composer' is the definition.
(I know that Delibes is a composer)
'in bed lies stricken opera' is the wordplay.
'bed lies' anagrams to 'DELIBES'.
But, I am not sure how this is indicated.
Can you help me to learn more?
(Other definitions for delibes that I've seen before include "Lakme composer" , "Leo -, Coppelia composer" , "Sylvia's French composer, 1836-91" , "French composer, Leo (1836-91)" .)