He delivers drinks possibly, meeting crew (9)
I believe the answer is:
roundsman
'he delivers' is the definition.
(I've seen this before)
'drinks possibly meeting crew' is the wordplay.
'drinks possibly' becomes 'rounds' (a round is a set of drinks ordered at a bar. I am not sure about the 'possibly' bit.).
'meeting' means one lot of letters go next to another.
'crew' becomes 'man' (both can mean to staff or operate something).
'rounds'+'man'='ROUNDSMAN'
Can you help me to learn more?
(Other definitions for roundsman that I've seen before include "He may deliver" , "Daily deliverer of milk, papers, etc" , "One who delivers goods" .)