Worked in revolutionary recess (5)
I believe the answer is:
niche
'recess' is the definition.
(I know that recess can be written as niche)
'worked in revolutionary' is the wordplay.
'worked' indicates anagramming the letters.
'revolutionary' becomes 'Che' (Che Guevara).
'in' with letters rearranged gives 'ni'.
'ni'+'che'='NICHE'
(Other definitions for niche that I've seen before include "Particularly well suited position" , "ideal position" , "Position well suited to the occupier" , "somewhere comfortable" , "Shallow recess in a wall" .)