Terminated drinks with editor (6)
I believe the answer is:
lapsed
'terminated' is the definition.
(lapsing is a kind of terminating)
'drinks with editor' is the wordplay.
I cannot quite understand how this works, but
'drinks' could be 'laps' (lapping is a kind of drinking) and 'laps' is found in the answer.
'editor' could be 'ed' (abbreviation) and 'ed' is present in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for lapsed that I've seen before include "Became invalid (through lack of renewal)" , "Became void through disuse" , "declined" , "Out of date" , "Fallen away from the faith" .)