Terminating or concluding (6)
I believe the answer is:
ending
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">terminating</span>' is the first definition.<br/ ><span class="explanation-format__explanation">('end' can be a synonym of 'terminate')</span><br/ ><br/ >'<span class="explanation-format__original">concluding</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for ending that I've seen before include "Stopping" , "Final part" , "Closure" , "Putting a stop to" , "ultimately" .)