overall vs work-clothes

overall and work-clothes both are nouns.

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

As nouns, work-clothes is a hypernym of overall; that is, work-clothes is a word with a broader meaning than overall:

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

Other hypernyms of overall include work-clothing, work clothes, work clothing.

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

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