Clown in bare skin with nothing on! (7)
I believe the answer is:
buffoon
'clown' is the definition.
(synonyms)
'bare skin with nothing on' is the wordplay.
'bare skin' becomes 'buff' (synonyms).
'with' says to put letters next to each other.
'nothing' becomes 'O' (looks like zero - 0).
'buff'+'o'+'on'='BUFFOON'
'in' is the link.
(Other definitions for buffoon that I've seen before include "Ludicrous figure" , "Foolish person" , "comic" , "Ridiculous person" , "'Clown, fool (7)'" .)