Shreds, as cheese (6)
I believe the answer is:
grates
'shreds as cheese' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for grates that I've seen before include "Rasps or irritates" , "Rasps against, food or nerves" , "Makes harsh noise by rubbing - on nerves?" , "Makes harsh sound by rubbing" , "Rubs harshly against, perhaps on nerves" .)