Go off with food and flowers (7)
I believe the answer is:
poppies
'flowers' is the definition.
(poppy is a kind of flower)
'go off with food' is the wordplay.
'go off' becomes 'pop' (I've seen this in another clue).
'with' means one lot of letters go next to another.
'food' becomes 'pies' (I've seen this before).
'pop'+'pies'='POPPIES'
'and' is the link.
(Other definitions for poppies that I've seen before include "Opium-yielding flower plants" , "Scarlet flowers" , "Large bright flowers" , "Sources of opium" .)