Molar or incisor (5)

I believe the answer is:

tooth

This clue is a double definition.

'molar' is the first definition.
(I've seen this in another clue)

'incisor' is the second definition.
(I've seen this before)

(Other definitions for tooth that I've seen before include "In which the old are long" , "Biter" , "Piece of ivory" , "Fang; cog" , "Projection of a gear wheel" .)

I've seen this clue in The Mirror and the Newsday.

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.