Concise and full of meaning (5)
I believe the answer is:
pithy
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">concise and full of meaning</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 pithy that I've seen before include "Concise and full of meaning" , "Terse, powerful (speech)" , "Cogent" , "Brief, to the point" , "Concise and meaningful" .)