Drag with effort (3)
I believe the answer is:
lug
'drag with effort' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for lug that I've seen before include "Haul; ear (slang)" , "Drag with effort; ear" , "Projecting piece; haul" , "Drag, haul" , "Drag heavily" .)