Curt, brusque (6)
I believe the answer is:
abrupt
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">curt</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(both can mean rudely brief)</span><br/ ><br/ >'<span class="explanation-format__original">brusque</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for abrupt that I've seen before include "Gruff" , "Terse, curt" , "Sudden, maybe rude" , "Terse and sudden" , "Rough and quick" .)