Pagan to cook chicken (7)
I believe the answer is:
heathen
'pagan' is the definition.
(I know that pagan can be written as heathen)
'cook chicken' is the wordplay.
'cook' becomes 'heat' (I've seen this before).
'chicken' becomes 'hen' (hen is a kind of chicken).
'heat'+'hen'='HEATHEN'
'to' acts as a link.
(Other definitions for heathen that I've seen before include "One who doesn't acknowledge your god" , "Person lacking culture or moral principles" , "Barbaric" , "Godless person" , "Non-religious person" .)