smasher vs doer

smasher and doer both are nouns.

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

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

Other hypernyms of smasher include actor, worker.

smasher (noun)	doer (noun)
a conspicuous success	a person who acts and gets things done
a very attractive or seductive looking woman
a person who smashes something