Anyone in it is out (6)
I believe the answer is:
trance
'out' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
'anyone in it' is the wordplay.
I cannot quite see how this works, but
'it' could be 't' (abbreviation. e.g. in 'tis) and 't' is located in the answer.
The remaining letters 'rance' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'is' is the link.
Can you help me to learn more?
(Other definitions for trance that I've seen before include "Dream state" , "Canter (anag.)" , "Nectar (anag)" , "Abstracted state" , "Deep sleeplike state" .)