Food for the journey to Bourne End (5)
I believe the answer is:
tripe
'food' is the definition.
(tripe is a kind of food)
'journey to bourne end' is the wordplay.
'journey' becomes 'trip' (trip is a kind of journey).
'end' indicates one should take the final letters.
The last letter of 'bourne' is 'e'.
'trip'+'e'='TRIPE'
'for the' acts as a link.
(Other definitions for tripe that I've seen before include "Edible nonsense?" , "Edible entrails" , "Lining of the stomach of a cow as food" , "Rubbish (colloq.)" , "Rubbish; offal" .)