Part of, as a plot (2,2)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">part of as a plot</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 in on that I've seen before include "Privy to" , "Aware of - being part of" , "Participating in - knowing about" , "Wise to" , "Sharing with" .)
(Another definition for inon that I've seen is " Privy to".)