Food that's tiptop and ready for eating (5)
I believe the answer is:
tripe
'food' is the definition.
(tripe is a kind of food)
'tiptop and ready for eating' is the wordplay.
'tiptop' becomes 't' (top of the word 'tip').
'and' is a charade indicator (letters next to each other).
'ready for eating' becomes 'ripe' (I can't justify this - if you can you should give a lot more credence to this answer).
't'+'ripe'='TRIPE'
'that's' is the link.
Can you help me to learn more?
(Other definitions for tripe that I've seen before include "Ox stomach as food - it's nonsense" , "Edible lining of cow's stomach - rubbish" , "Edible nonsense?" , "which a freegan might eat?" , "Ruminant's stomach lining" .)