clamor vs verbalize

clamor is a noun but verbalize is not a noun.

Word	Noun	Adjective	Verb	Adverb
clamor	Yes	No	Yes	No
verbalize	No	No	Yes	No

As verbs, verbalize is a hypernym of clamor; that is, verbalize is a word with a broader meaning than clamor:

Other hypernyms of clamor include express, give tongue to, utter, verbalise.

clamor (noun)	verbalize (noun)
loud and persistent outcry from many people
a loud harsh or strident noise

clamor (verb)	verbalize (verb)
utter or proclaim insistently and noisily	convert into a verb
make loud demands	express in speech
compel someone to do something by insistent clamoring	be verbose
	articulate; either verbally or with a cry, shout, or noise