Stewed pears, last bit of food in feast (6)
I believe the answer is:
spread
'feast' is the definition.
(thesaurus)
'stewed pears last bit of food' is the wordplay.
'stewed' is an anagram indicator.
'last bit of' indicates one should take the final letters.
The final letter of 'food' is 'd'.
'pears' with letters rearranged gives 'sprea'.
'sprea'+'d'='SPREAD'
'in' acts as a link.
(Other definitions for spread that I've seen before include "Broadcast" , "Stretch out; food paste" , "Distributed over" , "Rancher's property - sumptuous meal" , "butter?" .)