Flounce downstairs after no end of rage (8)
I believe the answer is:
furbelow
'flounce' is the definition.
(I know that flounce can be written as furbelow)
'downstairs after no end of rage' is the wordplay.
'downstairs' becomes 'be low' (synonyms).
'after' is a charade indicator (letters next to each other).
'no end of rage' becomes 'fur' (I can't justify this - if you can you should believe this answer much more).
'below' put after 'fur' is 'FURBELOW'.
Can you help me to learn more?
(Other definitions for furbelow that I've seen before include "Old-fashioned border of a skirt or petticoat" , "Ornamental trim" , "decoration for skirt, one gathered" , "Flounce, frill" , "Bit of skirt" .)