work-clothes vs overall

work-clothes and overall both are nouns.

Word	Noun	Adjective	Verb	Adverb
work-clothes	Yes	No	No	No
overall	Yes	Yes	No	No

As nouns, overall is a hyponym of work-clothes; that is, overall is a word with a more specific, narrower meaning than work-clothes:

work-clothes: clothing worn for doing manual labor
overall: (usually plural) work clothing consisting of denim trousers (usually with a bib and shoulder straps)

work-clothes (noun)	overall (noun)
clothing worn for doing manual labor	(usually plural) work clothing consisting of denim trousers (usually with a bib and shoulder straps)
	a loose protective coverall or smock worn over ordinary clothing for dirty work

work-clothes (adjective)	overall (adjective)
	involving only main features
	including everything