Hard white calcified substance covering the crown of each tooth (6)

I believe the answer is:

enamel

(Other definitions for enamel that I've seen before include "Decorative or protective covering on metal or glass." , "Hard shiny coating as on teeth" , "Hard white substance covering the crown of a tooth" , "protection for canines?" , "Glassy substance" .)

I've seen this clue in The Mirror.

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.