Shame piano’s fallen off platform (5)
I believe the answer is:
odium
'shame' is the definition.
(thesaurus)
'piano's fallen off platform' is the wordplay.
'piano' becomes 'p'.
'fallen off' is a deletion indicator.
'platform' becomes 'podium' (I've seen this before).
'podium' with 'p' taken out is 'ODIUM'.
(Other definitions for odium that I've seen before include "Widespread contempt or hatred" , "blame" , "Antipathy" , "reproach" , "Wide-spread disgust towards a person or action" .)