Raise (a topic) for discussion (6)
I believe the answer is:
broach
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">raise a topic for discussion</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 broach that I've seen before include "Start to talk about" , "Raise a topic for discussion" , "Open (container, subject)" , "Bring up a topic" , "Bring up or mention a subject" .)