crew member vs skilled worker

crew member and skilled worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
crew member	Yes	No	No	No
skilled worker	Yes	No	No	No

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

Other hypernyms of crew member include skilled workman, trained worker.

crew member (noun)	skilled worker (noun)
a member of a flight crew	a worker who has acquired special skills