Posed with revolutionary by left luggage (7)

I believe the answer is:

satchel

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'luggage' is the definition.
(satchel is a kind of luggage)

'posed with revolutionary by left' is the wordplay.
'posed' becomes 'sat' ('sit' can be a synonym of 'pose').
'with' says to put letters next to each other.
'revolutionary' becomes 'che' (Che Guevara the Marxist revolutionary).
'by left' becomes 'l' (common abbreviation. I am not sure about the 'by' bit.**).
'sat'+'che'+'l'='SATCHEL'

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(Other definitions for satchel that I've seen before include "Bag with a strap for books" , "What's carried by pupils" , "Shoulder bag as for schoolbooks" , "Bag for school books" , "Carrier for school books" .)

I've seen this clue in The Guardian.

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