Tool for making eyelet holes (3)
I believe the answer is:
awl
'tool for making eyelet holes' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for awl that I've seen before include "Pointed tool used in leatherwork" , "something sharp" , "One piercing" , "a boring person needs" , "has its use at last" .)