Monk embracing sinful dance (7)
I believe the answer is:
lambada
'dance' is the definition.
(Brazilian dance)
'monk embracing sinful' is the wordplay.
'monk' becomes 'lama' (as in the Dalai Lama).
'embracing' means one lot of letters goes inside another.
'sinful' becomes 'bad' (I've seen this in another clue).
'lama' enclosing 'bad' is 'LAMBADA'.
(Other definitions for lambada that I've seen before include "dance in South America" , "Fast Brazilian dance - mad Baal (anag)" , "few steps?" , "number of Brazilian revellers" , "raunchy dance" .)