Points about wine and fruit drink initially encouraging friendly relations (7,8)
I believe the answer is:
entente cordiale
'friendly relations' is the definition.
(friendly political relations)
'points about wine and fruit drink initially encouraging' is the wordplay.
'points' becomes 'en' (compass points east and north).
'about wine' becomes 'tente' (I can't explain this - if you can you should give a lot more credence to this answer).
'and' is a charade indicator (letters next to each other).
'fruit drink' becomes 'cordial' (I've seen this before).
'initially' suggests taking the first letters.
The initial letter of 'encouraging' is 'e'.
'en'+'tente'+'cordial'+'e'='ENTENTE CORDIALE'
(Other definitions for entente cordiale that I've seen before include "Agreement" , "Understanding" .)