clew vs lump

clew and lump both are nouns.

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

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

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

clew (noun)	lump (noun)
evidence that helps to solve a problem	a compact mass
a ball of yarn or cord or thread	a large piece of something without definite shape
	an awkward stupid person
	an abnormal protuberance or localized enlargement

clew (verb)	lump (verb)
roll into a ball	group or chunk together in a certain order or place side by side
	put together indiscriminately