clew vs clump

clew and clump both are nouns.

Word	Noun	Adjective	Verb	Adverb
clew	Yes	No	Yes	No
clump	Yes	No	Yes	No

As nouns, clump is a hypernym of clew; that is, clump is a word with a broader meaning than clew:

Other hypernyms of clew include ball, chunk, clod, glob, lump.

clew (noun)	clump (noun)
evidence that helps to solve a problem	a heavy dull sound (as made by impact of heavy objects)
a ball of yarn or cord or thread	a grouping of a number of similar things
	a compact mass

clew (verb)	clump (verb)
roll into a ball	gather or cause to gather into a cluster
	walk clumsily
	come together as in a cluster or flock
	make or move along with a sound as of a horse's hooves striking the ground