Pull on an ear (3)
I believe the answer is:
lug
I believe this clue is a double definition.
'pull' is the first definition.
(thesaurus)
'an ear' is the second definition.
(thesaurus)
'on' acts as a link.
(Other definitions for lug that I've seen before include "Drag, haul" , "Drag heavily" , "Pull - ear" , "Drag or carry with effort" , "Projecting piece; haul" .)