Light stage work awkward to repeat (8)
I believe the answer is:
operetta
'light stage work' is the definition.
(I've seen this before)
'awkward to repeat' is the wordplay.
'awkward' indicates an anagram.
'to'+'repeat'='torepeat'
'torepeat' with letters rearranged gives 'OPERETTA'.
(Other definitions for operetta that I've seen before include "Light classical musical comedy-drama" , "light-hearted performance" , "Light musical drama" , "Light musical stage work" , "G&S production, perhaps" .)