Topic for debate (5)
I believe the answer is:
issue
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">topic for debate</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>
(Other definitions for issue that I've seen before include "litter" , "Subject, result, or publication" , "outlet" , "Bring out - children" , "Number (of periodical)" .)