Less quiet (6)
I believe the answer is:
louder
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">less quiet</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for louder that I've seen before include "More noisy or bright" , "Noisier or gaudier" , "'Actions speak . . . . . . than words'" , "Sound of greater volume" .)