Go naked to party (4)
I believe the answer is:
rave
'party' is the definition.
(type of dance party)
'go naked' is the wordplay.
'go' becomes 'travel' (synonyms).
'naked' means to look at the middle letters (outside letters removed so centre is unclothed).
The central letters of 'travel' are 'RAVE'.
'to' acts as a link.
(Other definitions for rave that I've seen before include "Rant about an all-night dance party?" , "modern dance music" , "Party with electronic dance music - be wild" , "Rapturous" , "Talk incoherently" .)