Alloy of iron and carbon (5)

I believe the answer is:

steel

(Other definitions for steel that I've seen before include "Form of iron" , "Knife-sharpener" , "The staying power" , "Hard iron alloy" , "Strong metal" .)

I've seen this clue in The Mirror, The Guardian and 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.