Paul chewed ingesting one dish (5)
I believe the answer is:
pilau
'dish' is the definition.
(I know that pilau is a type of dish)
'paul chewed ingesting one' is the wordplay.
'chewed' is an anagram indicator.
'ingesting' is an insertion indicator.
'one' becomes 'i' (Roman numeral).
'paul' is an anagram of 'plau'.
'plau' placed around 'i' is 'PILAU'.
(Other definitions for pilau that I've seen before include "Eastern food" , "Type of rice" , "Foreign dish" , "Indian rice recipe" , "Indian dish of rice boiled with meat, vegetables, spices etc" .)