Concise, pithy (5)
I believe the answer is:
terse
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">concise</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >'<span class="explanation-format__original">pithy</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for terse that I've seen before include "Curt - abrupt" , "Brusque among trees" , "Crisply brief" , "Briefly expressed" , "Abrupt, concise" .)