A manufacturer of iron from its ores; one who carries out ironmaking.

Is ironworkers one word or two?

a worker in iron. a person employed in an ironworks.

What is the verb of iron?

ironed; ironing; irons. Definition of iron (Entry 3 of 3) transitive verb. 1a : to smooth with or as if with a heated iron iron a shirt. b : to remove (something, such as wrinkles) by ironing.