Posed holding revolutionary bag (6)
I believe the answer is:
sachet
'bag' is the definition.
(sachet is a kind of bag)
'posed holding revolutionary' is the wordplay.
'posed' becomes 'sat' ('sit' can be a synonym of 'pose').
'holding' indicates putting letters inside.
'revolutionary' becomes 'che' (Che Guevara the Marxist revolutionary).
'sat' going around 'che' is 'SACHET'.
(Other definitions for sachet that I've seen before include "Small packet (of, eg, shampoo)" , "'Small soft packet, of pot-pourri perhaps (6)'" , "Small sealed packet" , "Small bag with sweet-smelling substance" , "Scent bag - shampoo envelope" .)