Document naked twirling at rave (7)
I believe the answer is:
warrant
'document' is the definition.
(warrant is a kind of document)
'naked twirling at rave' is the wordplay.
'naked' becomes 'raw' (I've seen this in another clue).
'twirling' shows that the letters should be reversed in order.
'at' says to put letters next to each other.
'rave' becomes 'rant' (synonyms).
'raw' back-to-front is 'war'.
'war'+'rant'='WARRANT'
(Other definitions for warrant that I've seen before include "Guaranty - authorisation to make an arrest" , "Call for" , "Permit for arrest, search of premises, etc" , "Writ for arrest" , "Travel pass" .)