Diplomatic accord (7)
I believe the answer is:
entente
'diplomatic accord' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for entente that I've seen before include "Teen ten involved in friendly understanding between countries" , "that brings nations closer together" , "friendly relations" , "International agreement" , "A friendly understanding between countries, may be cordial" .)