River in North America that flows from Lake Erie to Lake Ontario (7)

I believe the answer is:

niagara

(Other definitions for niagara that I've seen before include "Great waterfalls on border of USA and Canada" , "North American river with famous falls" , "Waterfall at Iran aga" , "A lot of falling water" , "Great waterfalls on US-Canada border" .)

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.