Some opera is expected to elate (5)
I believe the answer is:
raise
'to elate' is the definition.
(thesaurus)
'some opera is expected' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'RAISE' can be found hidden inside 'opera is expected'.
(Other definitions for raise that I've seen before include "Cultivate by growing" , "Produce" , "Uplift" , "Bring up, rear" , "Lift up, bring up" .)