skinhead vs doer

skinhead and doer both are nouns.

Word	Noun	Adjective	Verb	Adverb
skinhead	Yes	No	No	No
doer	Yes	No	No	No

As nouns, doer is a hypernym of skinhead; that is, doer is a word with a broader meaning than skinhead:

Other hypernyms of skinhead include actor, worker.

skinhead (noun)	doer (noun)
a member of any of several British or American groups consisting predominantly of young people who shave their heads; some engage in white supremacist and anti-immigrant activities and this leads to the perception that all skinheads are racist and violent	a person who acts and gets things done
a person whose head is bald or shaved