Unspoiled (8)
I believe the answer is:
'unspoiled' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for pristine that I've seen before include "In original condition" , "Fresh and clean as if new" , "Pure - tire spin (anag)" , "Pint, sire? (anag)" , "Original, unspoiled" .)