Revolutionary artist wearing flower — it's cheesy (7)
I believe the answer is:
rarebit
'it's cheesy' is the definition.
(Welsh rarebit is a dish containing cheese)
'revolutionary artist wearing flower' is the wordplay.
'revolutionary' says the letters should be written backwards (letters revolve around).
'artist' becomes 'RA' (Royal Academician, member of Royal Academy of Arts).
'wearing' indicates putting letters inside.
'flower' becomes 'rebit' (I can't justify this - if you can you should believe this answer much more).
'ra' reversed gives 'ar'.
'ar' put into 'rebit' is 'RAREBIT'.
Can you help me to learn more?
(Other definitions for rarebit that I've seen before include "mouthful?" , "Melted cheese with ale on toast" , "Welsh snack" , "Toasted cheese and bread" , "Cooked cheese on toast" .)