clack vs maunder

clack is a noun but maunder is not a noun.

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

As verbs, clack and maunder are synonyms defined as:

clack and maunder: speak (about unimportant matters) rapidly and incessantly

Other synonyms of clack include blab, blabber, chatter, gabble, gibber, palaver, piffle, prate, prattle, tattle, tittle-tattle, twaddle.

clack (noun)	maunder (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)	maunder (verb)
speak (about unimportant matters) rapidly and incessantly	talk indistinctly; usually in a low voice
make a clucking sounds, characteristic of hens	speak (about unimportant matters) rapidly and incessantly
make a rattling sound	wander aimlessly