Slugged drink with editor (7)
I believe the answer is:
punched
'slugged' is the definition.
(slug can mean to hit or punch)
'drink with editor' is the wordplay.
'drink' becomes 'punch' (punch is an alcoholic drink).
'with' says to put letters next to each other.
'editor' becomes 'ed' (abbreviation).
'punch'+'ed'='PUNCHED'
(Other definitions for punched that I've seen before include "Hit with a fist" , "Thumped" , "Belted" .)