A party to (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">a party to</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for in on that I've seen before include "Aware of - being part of" , "Participating in - knowing about" , "Wise to" , "Aware of secret" , "Privy to" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">a party to</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Another definition for inon that I've seen is " Privy to".)