Crossword Genius

Used for rubbing and grinding; harsh (8)

Ross

I believe the answer is:

abrasive

(Other definitions for abrasive that I've seen before include "Harsh, causing angry feelings" , "Harsh in manner, capable of causing anger" , "frictional" , "Harsh or insensitive in manner" , "Grinding substance" .)

I've seen this clue in the Sydney Morning Herald.
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