fixer vs skilled worker

fixer and skilled worker both are nouns.

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

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

Other hypernyms of fixer include skilled workman, trained worker.

fixer (noun)	skilled worker (noun)
synthetic narcotic drug similar to morphine but less habit-forming; used in narcotic detoxification and maintenance of heroin addiction	a worker who has acquired special skills
someone who intervenes with authorities for a person in trouble (usually using underhand or illegal methods for a fee)
a skilled worker who mends or repairs things
a chemical compound that sets or fixes something (as a dye or a photographic image)