Transcendent state (7)
I believe the answer is:
nirvana
'transcendent state' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for nirvana that I've seen before include "Transcendent state - US grunge band" , "Buddhist state of perfect bliss" , "Eastern place of complete bliss" , "State of ideal happiness" , "Buddhist state of bliss; enlightenment" .)