Crossword Genius

Significant advance (12)

Ross

I believe the answer is:

breakthrough

'significant advance' is the definition.
(I've seen this before)

This is all the clue.

(Other definitions for breakthrough that I've seen before include "Sudden significant development" , "Find" , "Important development (eg in research)" , "(At last!) the solution, eg to scientific problem" , "Significant discovery - ending of impasse" .)

I've seen this clue in The Guardian.
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.