During outrageous scenes, get naked at bottom (2,7)
I believe the answer is:
in essence
'at bottom' is the definition.
(at bottom can mean essentially or basically)
'during outrageous scenes get naked' is the wordplay.
'during' becomes 'in' (e.g. during February means in February).
'outrageous' indicates anagramming the letters (I've seen this in other clues).
'naked' indicates the central letters.
The central letter of 'get' is 'e'.
'scenes' anagrammed gives 'essenc'.
'in'+'essenc'+'e'='IN ESSENCE'
(Other definitions for in essence that I've seen before include "at bottom" , "Fundamentally" , "Basically" , "Substantially" .)