Fight over a point of honour (4)
I believe the answer is:
duel
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fight over a point of honour</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 duel that I've seen before include "shoot-out?" , "Combat between two people in matter of honour" , "Prearranged fight with deadly weapons between two people" , "Personal combat" , "One got satisfaction from this" .)