Some get paid less for not working (4)
I believe the answer is:
idle
'not working' is the definition.
(idle means doing no work)
'some get paid less' is the wordplay.
'some' indicates a hidden word (some parts of the word are used).
'IDLE' can be found hidden inside 'get paid less'.
'for' is the link.
(Other definitions for idle that I've seen before include "Not occupied" , "Do very little" , "Not hardworking" , "Circus entertainer" , "Turn over" .)