Flower was revolting (4)
I believe the answer is:
rose
This clue might be a double definition.
'flower' is the first definition.
(I've seen this before)
'revolting' is the second definition.
Both the answer and definition are adjectives. Perhaps you can see an association between them that I can't see?
'was' is the link.
Can you help me to learn more?
(Other definitions for rose that I've seen before include "Prickly plant with bright flowers" , "'A . . . . by any other name smells as sweet'" , "sprang up" , "Flower; increased" , "Fragrant flower" .)