Ecstasy comes from nectar being drunk (6)
I believe the answer is:
trance
'ecstasy' is the definition.
(thesaurus)
'nectar being drunk' is the wordplay.
'being drunk' indicates anagramming the letters.
'nectar' is an anagram of 'TRANCE'.
'comes from' is the link.
(Other definitions for trance that I've seen before include "Dream-like state" , "Sleep-like, half-conscious state" , "Dazed state" , "Nectar (anag)" , "State of a medium in a seance" .)