calligrapher vs skilled worker

calligrapher and skilled worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
calligrapher	Yes	No	No	No
skilled worker	Yes	No	No	No

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

Other hypernyms of calligrapher include skilled workman, trained worker.

calligrapher (noun)	skilled worker (noun)
someone skilled in penmanship	a worker who has acquired special skills