clack vs smatter

clack is a noun but smatter is not a noun.

Word	Noun	Adjective	Verb	Adverb
clack	Yes	No	Yes	No
smatter	No	No	Yes	No

As verbs, smatter is a hyponym of clack; that is, smatter is a word with a more specific, narrower meaning than clack:

Other hyponyms of clack include babble, blather, blether, blither.

clack (noun)	smatter (noun)
a simple valve with a hinge on one side; allows fluid to flow in only one direction
a sharp abrupt noise as if two objects hit together; may be repeated

clack (verb)	smatter (verb)
speak (about unimportant matters) rapidly and incessantly	speak with spotty or superficial knowledge
make a clucking sounds, characteristic of hens	to talk foolishly
make a rattling sound	work with in an amateurish manner