tuner vs skilled workman

tuner and skilled workman both are nouns.

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

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

Other hypernyms of tuner include skilled worker, trained worker.

tuner (noun)	skilled workman (noun)
an electronic receiver that detects and demodulates and amplifies transmitted signals	a worker who has acquired special skills
someone who tunes a musical instrument