speechmaker vs talker

speechmaker and talker both are nouns.

Word	Noun	Adjective	Verb	Adverb
speechmaker	Yes	No	No	No
talker	Yes	No	No	No

As nouns, talker is a hypernym of speechmaker; that is, talker is a word with a broader meaning than speechmaker:

speechmaker: a person who delivers a speech or oration
talker: someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)

Other hypernyms of speechmaker include speaker, utterer, verbaliser, verbalizer.

speechmaker (noun)	talker (noun)
a person who delivers a speech or oration	someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)