Food ready to eat after end of fast (5)
I believe the answer is:
tripe
'food' is the definition.
(tripe is a kind of food)
'ready to eat after end of fast' is the wordplay.
'ready to eat' becomes 'ripe' (I've seen this before).
'after' is a charade indicator (letters next to each other).
'end of' says to take the final letters.
The last letter of 'fast' is 't'.
'ripe' put after 't' is 'TRIPE'.
(Other definitions for tripe that I've seen before include "Edible lining of cow's stomach - rubbish" , "poor stuff" , "Junk; food" , "Rot" , "Rubbish - it's ox stomach linings" .)