Blunt — rude (6)
I believe the answer is:
abrupt
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">blunt</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >'<span class="explanation-format__original">rude</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ ></span>
(Other definitions for abrupt that I've seen before include "Sudden, maybe rude" , "brisk" , "Short and rude" , "Short, sharp or sudden" , "Hurried or curt" .)