craftsman vs trained worker

craftsman and trained worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
craftsman	Yes	No	No	No
trained worker	Yes	No	No	No

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

Other hypernyms of craftsman include skilled worker, skilled workman.

craftsman (noun)	trained worker (noun)
a skilled worker who practices some trade or handicraft	a worker who has acquired special skills
a creator of great skill in the manual arts
a professional whose work is consistently of high quality