Use an auger (4)
I believe the answer is:
bore
'use an auger' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for bore that I've seen before include "Drill to be tiresome" , "Tedious person - wave - make a hole" , "Irritate" , "Diameter of a gun barrel" , "fatigue" .)