Labour man? (6)
I believe the answer is:
worker
'labour man?' is the definition.
'worker' can be an answer for 'man?' (man is a kind of worker). I'm not sure about the 'labour' bit.
'labour man?' is the wordplay.
'labour' becomes 'work' (I've seen this before).
'man?' becomes 'er' (I am not sure about this - if you are sure you should believe this answer much more).
'work'+'er'='WORKER'
Can you help me to learn more?
(Other definitions for worker that I've seen before include "See 20" , "Employee; bee" , "Labourer" , "See 1" , "Manual employee" .)