Flipping fabulous bird put on girdle (6)
I believe the answer is:
corset
'girdle' is the definition.
('corset' can be a synonym of 'girdle')
'flipping fabulous bird put' is the wordplay.
'flipping' shows that the letters should be reversed in order.
'fabulous bird' becomes 'roc' (I've seen this before**).
'put' becomes 'set' (setting is a kind of putting).
'roc' backwards is 'cor'.
'cor'+'set'='CORSET'
'on' acts as a link.
(Other definitions for corset that I've seen before include "Female undergarment" , "Shaping undergarment" , "Tight bodice" , "female garment!" , "Sector (anag)" .)