Boars in a terrible scrape (8)
I believe the answer is:
abrasion
'scrape' is the definition.
(I know that scrape can be written as abrasion)
'boars in a terrible' is the wordplay.
'terrible' indicates anagramming the letters.
'boars'+'in'+'a'='boarsina'
'boarsina' is an anagram of 'ABRASION'.
(Other definitions for abrasion that I've seen before include "Sore mark caused by rubbing" , "Skin wound" , "showing wear" , "Asian bro with scrape" , "Cut or scratch" .)