Playboy's a tool (4)
I believe the answer is:
rake
I believe this is a double definition.
'playboy's' is the first definition.
(old-fashioned term for a womanising man)
'a tool' is the second definition.
(I know that rake is a type of tool)
(Other definitions for rake that I've seen before include "Garden tool or loose fellow" , "this to smooth the way?" , "Garden tool - libertine" , "Smooth - Lothario" , "Playboy" .)