Middle point (6)
I believe the answer is:
centre
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">middle point</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 centre that I've seen before include "Middle, hub" , "Place in the 18 down" , "'Things fall apart; the ... cannot hold'/Yeats" , "Middle, core" , "'Things fall apart; the ... cannot hold' (Yeats)" .)