Dance in a state of oblivion (5)
I believe the answer is:
limbo
I believe this is a double definition.
'dance' is the first definition.
(I've seen this before)
'a state of oblivion' is the second definition.
'in' acts as a link.
(Other definitions for limbo that I've seen before include "Uncertain period awaiting a resolution" , "State of waiting in uncertainty" , "Medieval Christian abode for unbaptised souls" , "In medieval theology, heavenly abode for the unbaptised" , "It used to be a place between Heaven and Hell" .)