Celebrities dying on stage scupper premiere (7)
I believe the answer is:
legends
'celebrities' is the definition.
'dying on stage scupper premiere' is the wordplay.
I cannot really understand how this works, but
'on' could be 'leg' (cricket term, fielding positions) and 'leg' is found within the answer.
'stage' could be 'end' (I have seen 'Final stage' mean 'end' so perhaps 'stage' could also mean 'end') and 'end' is present in the answer.
A single letter 's' remains which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for legends that I've seen before include "Myths, fables" , "Mythical stories from the past" , "Such as George Best and Stanley Matthews" , "Stories handed down from the past" , "The saintly lives" .)