Crossword Genius

Well-used pencil, say (3)

Ross

I believe the answer is:

nub

(Other definitions for nub that I've seen before include "Crux; lump" , "Crux, central point" , "Metal piece" , "'Gist, central idea (3)'" , "Gist; small lump" .)

I've seen this clue in The New York Times.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.