Drifters against housing spy on commanding Turk (9)
I believe the answer is:
vagabonds
'drifters' is the definition.
(I've seen this in another clue)
'against housing spy on commanding turk' is the wordplay.
'against' becomes 'v' (abbreviation for 'versus').
'housing' is an insertion indicator.
'spy' becomes 'bond' (James Bond).
'on commanding turk' becomes 'agas' (I can't justify this - if you can you should believe this answer much more).
'bond' placed into 'agas' is 'agabonds'.
'v'+'agabonds'='VAGABONDS'
Can you help me to learn more?
(Another definition for vagabonds that I've seen is " They wander from place to place without home or job".)