In Shakespeare: naughty scene (5)
I believe the answer is:
arena
'scene' is the definition.
(I've seen this in another clue)
'in shakespeare naughty' is the wordplay.
'in' indicates the answer is hidden within the clue.
'ARENA' is hidden in the letters of 'shakespeare naughty'.
(Other definitions for arena that I've seen before include "Place or scene of activity" , "The place of action" , "Area of activity, boxing perhaps" , "Ring; stadium" , "Sphere of action" .)