Publicly denounced about flower (5)
I believe the answer is:
clyde
'flower' is the definition.
(I have seen 'Flower of Scotland' mean 'clyde' so perhaps 'flower' could also mean 'clyde')
'publicly denounced about' is the wordplay.
'about' says the answer is hidden in the clue (the clue goes around or about the answer).
'CLYDE' is hidden in the letters of 'publicly denounced'.
(Other definitions for clyde that I've seen before include "Criminal" , "Glasgow's river" , "Glaswegian river" , "Bonnie companion" , "Bonnie and --, outlaws" .)