Issue — theme (5)
I believe the answer is:
topic
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">issue</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that issue can be written as topic)</span><br/ ><br/ >'<span class="explanation-format__original">theme</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that theme can be written as topic)</span><br/ ><br/ ></span>
(Other definitions for topic that I've seen before include "Issue (for discussion)" , "Talking point" , "Subject (eg, of text)" , "Subject (of a talk, etc)" , "Subject matter of a conversation or discussion" .)