Interrogation point (8,4)
I believe the answer is:
question mark
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">interrogation point</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for question mark that I've seen before include "Query" , "Not believe the gospel" , "What ends this" , "Expression of uncertainty" .)