Pip hates changing words set in stone (8)
I believe the answer is:
epitaphs
'pip hates changing words set in stone' is the definition.
I can't judge whether this definition defines the answer.
'pip hates changing' is the wordplay.
'changing' indicates anagramming the letters.
'pip'+'hates'='piphates'
'piphates' with letters rearranged gives 'EPITAPHS'.
Can you help me to learn more?
(Other definitions for epitaphs that I've seen before include "Words written in memory of the dead" , "Inscriptions on tombstones" , "Famous last words" , "Happiest sort of inscriptions on tombs" , "Happiest (anag)" .)