Animal food given to so-called religious fellow (8)
I believe the answer is:
'animal' is the definition.
(type of animal)
'food given to so-called religious fellow' is the wordplay.
'food' becomes 'chip' (chip is a kind of food).
'given to' says to put letters next to each other.
'so-called' shows a homophone (sound like).
'religious fellow' becomes 'monk'.
'monk' is a homophone of 'munk'.
(Other definitions for chipmunk that I've seen before include "Squirrel - much pink (anag)" , "North American native" , "American creature" , "US ground squirrel" , "Burrowing ground squirrel" .)