Hard worker (7)
'hard worker' is the definition.
(someone toiling at something)
This is all the clue.
(Another definition for toiler that I've seen is " A hard worker given to loiter".)
'hard worker' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for grafter that I've seen before include "Hard worker - corrupt operator" , "One who works hard" .)