overwhelm vs clutch

overwhelm is not a noun while clutch is a noun.

Word	Noun	Adjective	Verb	Adverb
overwhelm	No	No	Yes	No
clutch	Yes	No	Yes	No

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

Other hyponyms of overwhelm include devastate, get hold of, seize, kill, benight, knock out, stagger, lock.

overwhelm (noun)	clutch (noun)
	the act of grasping
	a coupling that connects or disconnects driving and driven parts of a driving mechanism
	a pedal or lever that engages or disengages a rotating shaft and a driving mechanism
	a woman's strapless purse that is carried in the hand
	a collection of things or persons to be handled together
	a number of birds hatched at the same time
	a tense critical situation

overwhelm (verb)	clutch (verb)
charge someone with too many tasks	affect
overcome by superior force	take into your hands deliberately
cover completely or make imperceptible	hold firmly, usually with one's hands
overcome, as with emotions or perceptual stimuli