Song from star I applauded (4)
I believe the answer is:
aria
'song' is the definition.
(aria is a kind of song)
'from star i applauded' is the wordplay.
'from' indicates the answer is hidden within the clue.
'ARIA' is hidden in the letters of 'star i applauded'.
(Other definitions for aria that I've seen before include "selection of opera" , "Summertime perhaps" , "Operatic solo, duet, etc" , "Repeated strain" , "Operatic part" .)