Stood for flipping parade -- tone-deaf taking part (7)
I believe the answer is:
denoted
'stood for' is the definition.
'flipping parade tone-deaf taking part' is the wordplay.
'flipping' says the letters should be written backwards.
'taking part' says the answer is hidden in the clue.
'detoned' is hidden within 'parade tone deaf'.
'detoned' in reverse letter order is 'DENOTED'.
(Other definitions for denoted that I've seen before include "Indicated or meant" , "Signified" .)