regaining vs clawback

regaining and clawback both are nouns.

Word	Noun	Adjective	Verb	Adverb
regaining	Yes	No	No	No
clawback	Yes	No	No	No

As nouns, clawback is a hyponym of regaining; that is, clawback is a word with a more specific, narrower meaning than regaining:

regaining: getting something back again
clawback: finding a way to take money back from people that they were given in another way

regaining (noun)	clawback (noun)
getting something back again	finding a way to take money back from people that they were given in another way