Praise a piano recital's ending during interval (8)
I believe the answer is:
applause
'praise' is the definition.
(thesaurus)
'a piano recital's ending during interval' is the wordplay.
'piano' becomes 'p'.
'ending' indicates one should take the final letters.
'during' is an insertion indicator.
'interval' becomes 'pause' (pause is a kind of interval**).
The final letter of 'recital' is 'l'.
'l' going within 'pause' is 'plause'.
'a'+'p'+'plause'='APPLAUSE'
(Other definitions for applause that I've seen before include "Clapping of hands" , "Appreciative round?" , "Audible demonstration of approval" , "Show of appreciation" , "loud support" .)