Bag a revolutionary brought into street (6)
I believe the answer is:
sachet
'bag' is the definition.
(sachet is a kind of bag)
'a revolutionary brought into street' is the wordplay.
'revolutionary' becomes 'che' (Che Guevara the Marxist revolutionary).
'brought into' is an insertion indicator.
'street' becomes 'st'.
'a'+'che'='ache'
'ache' placed inside 'st' is 'SACHET'.
(Other definitions for sachet that I've seen before include "'Small soft bag, for perfumed powder say (6)'" , "Small sealed packet" , "Small soft bag, containing perfumed powder perhaps" , "'Small soft packet, of pot-pourri perhaps (6)'" , "Package" .)