Ancient Greece's "father of geometry” (6)

I believe the answer is:

euclid

(Other definitions for euclid that I've seen before include "Geometrician of the 3rd century BC" , "6 mathematician" , "Old mathematician" , "Book of geometry" , "Greek philosopher" .)

I've seen this clue in The 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.