Sandpaper say rubbing the wrong way? (8)
I believe the answer is:
abrasive
This might be a double definition.
'sandpaper say' is the first definition.
(sandpaper is a kind of abrasive)
'rubbing the wrong way?' is the second definition.
'abrasive' can be an answer for 'rubbing' (I've seen this before). I am not certain of the 'the wrong way?' bit.
Can you help me to learn more?
(Other definitions for abrasive that I've seen before include "Harsh in manner, capable of causing anger" , "Arabs vie to be harsh or provocative" , "frictional" , "Rough to the touch" , "Overly aggressive" .)