yielder vs doer

yielder and doer both are nouns.

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

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

Other hypernyms of yielder include actor, worker.

yielder (noun)	doer (noun)
a person who yields or surrenders	a person who acts and gets things done