shearer vs workman

shearer and workman both are nouns.

Word	Noun	Adjective	Verb	Adverb
shearer	Yes	No	No	No
workman	Yes	No	No	No

As nouns, workman is a hypernym of shearer; that is, workman is a word with a broader meaning than shearer:

Other hypernyms of shearer include working man, working person, workingman.

shearer (noun)	workman (noun)
a skilled worker who shears the wool off of sheep or other animals	an employee who performs manual or industrial labor
a workman who uses shears to cut leather or metal or textiles