To put it briefly (2,3)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">to put it briefly</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 sum that I've seen before include "All things considered" , "to put it briefly" , "In short" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">to put it briefly</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>