electrician vs skilled workman

electrician and skilled workman both are nouns.

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

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

Other hypernyms of electrician include skilled worker, trained worker.

electrician (noun)	skilled workman (noun)
a person who installs or repairs electrical or telephone lines	a worker who has acquired special skills