Informal alliance (7)
I believe the answer is:
entente
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">informal alliance</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for entente that I've seen before include "Friendly agreement between states" , "Diplomatic agreement" , "Interstate understanding" , "International agreement" , "friendly relations" .)