Drink with everyone before work (6)
I believe the answer is:
wallop
'drink' is the definition.
(wallop can mean beer)
'with everyone before work' is the wordplay.
'with' becomes 'w' (abbreviation).
'everyone' becomes 'all' (all people).
'before' means one lot of letters go next to another.
'work' becomes 'op' (abbreviation for opus).
'w'+'all'+'op'='WALLOP'
(Other definitions for wallop that I've seen before include "Strike very hard" , "Hit - the booze?" , "Beat" , "Beer - hit hard" , "Thrash - beer (slang)" .)