Sluggard has to drag (3)
I believe the answer is:
lug
'drag' is the definition.
(thesaurus)
'sluggard has' is the wordplay.
'has' indicates the answer is hidden within the clue.
'LUG' can be found hidden inside 'sluggard'.
'to' is the link.
(Other definitions for lug that I've seen before include "Drag heavily" , "Drag with effort; ear" , "Pull - ear" , "Drag or carry with effort" , "Drag, haul" .)