Prolific US inventor (6)

I believe the answer is:

edison

(Other definitions for edison that I've seen before include "Inventor with over 1,000 US patents to his name, d. 1931" , "inventive sort" , "He came up with microphone" , "Inventor's" , "Onside with great American inventor" .)

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.