Affronting (9)
I believe the answer is:
insulting
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">affronting</span>' is the definition.<br/ ><span class="explanation-format__explanation">('insult' can be a synonym of 'affront')</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for insulting that I've seen before include "Treating with disrespect" , "What offender's doing" , "Offensive" .)