Outdated permit to go East (5)
I believe the answer is:
passe
'outdated' is the definition.
(French term meaning out of date or unfashionable)
'permit to go east' is the wordplay.
'permit' becomes 'pass' (passing is a kind of permiting).
'to' says to put letters next to each other.
'go east' becomes 'e' (abbreviation. I am not sure about the 'go' bit.).
'pass'+'e'='PASSE'
Can you help me to learn more?
(Other definitions for passe that I've seen before include "No longer fashionable" , "Outmoded" , "-- -partout" , "dated" , "Out of date" .)