Cunning fellows housed in suitable accommodation (9)
I believe the answer is:
apartment
'accommodation' is the definition.
(I've seen this before)
'cunning fellows housed in suitable' is the wordplay.
'cunning' becomes 'art' (both can mean artfulness or trickery).
'fellows' becomes 'men' (fellow can mean a man).
'housed in' means one lot of letters goes inside another.
'suitable' becomes 'apt' (apt means appropriate or fitting).
'art'+'men'='artmen'
'artmen' inserted inside 'apt' is 'APARTMENT'.
(Other definitions for apartment that I've seen before include "place to live" , "Suite of rooms to live in" , "pad" , "19 across" , "Flat (chiefly US)" .)