Sheer rip. perhaps (8)
I believe the answer is:
perisher
'sheer rip perhaps' is the definition.
I can't judge whether this defines the answer.
'sheer rip perhaps' is the wordplay.
'perhaps' is an anagram indicator.
'sheer'+'rip'='sheerrip'
'sheerrip' anagrammed gives 'PERISHER'.
Can you help me to learn more?
(Other definitions for perisher that I've seen before include "pain" , "source of annoyance" , "One dies" , "Little imp" , "Annoying person" .)