Perfect example of Eastern book with religious content (7)
I believe the answer is:
epitome
'perfect example' is the definition.
(I've seen this before)
'eastern book with religious content' is the wordplay.
'eastern' becomes 'e'.
'book' becomes 'tome' (tome is a kind of book**).
'with' is a charade indicator (letters next to each other).
'religious' becomes 'pi'.
'content' is an insertion indicator.
'e'+'tome'='etome'
'etome' going around 'pi' is 'EPITOME'.
'of' is the link.
(Other definitions for epitome that I've seen before include "classic example" , "Personification" , "Paradigm" , "Summary of a written work" , "Exemplar - embodiment" .)