Throw away some scrapings (5)
I believe the answer is:
scrap
'throw away' is the definition.
(scrapping is a kind of throwing away)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for scrap that I've seen before include "Get rid of" , "Scuffle" , "Small amount; fight" , "Ditch - dust-up" , "Discard; a bit" .)