draftsman vs skilled workman

draftsman and skilled workman both are nouns.

Word	Noun	Adjective	Verb	Adverb
draftsman	Yes	No	No	No
skilled workman	Yes	No	No	No

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

Other hypernyms of draftsman include skilled worker, trained worker.

draftsman (noun)	skilled workman (noun)
a skilled worker who draws plans of buildings or machines	a worker who has acquired special skills
an artist skilled at drawing