Loafer (5)
I believe the answer is:
idler
'loafer' is the definition.
(I know that loafer can be written as idler)
This is the entire clue.
(Other definitions for idler that I've seen before include "Lazybones; gear wheel" , "Johnson's work" , "Sluggard" , "One who doesn't want to work" , "One working to control tension" .)