Composer contributing to silver disc (5)
I believe the answer is:
verdi
'composer' is the definition.
(I've seen this before)
'contributing to silver disc' is the wordplay.
'contributing to' says the answer is hidden in the clue.
'VERDI' can be found hidden inside 'silver disc'.
(Other definitions for verdi that I've seen before include "Drive (anag) - composer" , "Diver became a strange composer" , "Italian opera composer" , "Drive like composer of operas" , "Giuseppe _____, composer of "La Traviata"" .)