dialogue, perhaps (10)
I believe the answer is:
discussion
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dialogue perhaps</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that dialogue is a type of discussion)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for discussion that I've seen before include "Debate, conversation" , "when hot air's emitted?" , "argument" .)