Buddhist enlightenment (6)
I believe the answer is:
satori
'buddhist enlightenment' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for satori that I've seen before include "sudden awakening" , "awareness all of a sudden" , "Sudden enlightenment (Buddhism)" , "enlightened state" , "sudden Buddhist enlightenment" .)