Journey to East is rubbish (5)
I believe the answer is:
tripe
'rubbish' is the definition.
('tripe' can be a synonym of 'rubbish')
'journey to east' is the wordplay.
'journey' becomes 'trip' (trip is a kind of journey).
'to east' becomes 'e' ('E' can be a synonym of 'east').
'trip'+'e'='TRIPE'
'is' acts as a link.
(Other definitions for tripe that I've seen before include "Pants" , "load of rubbish?" , "Ox stomach as food - it's nonsense" , "Rubbish; offal" , "Rubbish - it's ox stomach linings" .)