Slur coming from bar, nude, frolicking with nothing on (8)
I believe the answer is:
innuendo
'slur' is the definition.
(I've seen this in another clue)
'bar nude frolicking with nothing on' is the wordplay.
'bar' becomes 'inn' (I've seen this in other clues).
'frolicking with' is an anagram indicator.
'nothing on' becomes 'o' (I've seen this in other clues).
'nude' with its letters mixed up with 'o' can make 'uendo'.
'inn'+'uendo'='INNUENDO'
'coming from' acts as a link.
(Other definitions for innuendo that I've seen before include "Indirect or subtle reference" , "Suggestiveness" , "Indirect reference to something rude" , "derogatory reference" , "Insinuation - suggestion" .)