Made louder (9)
I believe the answer is:
amplified
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">made louder</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 amplified that I've seen before include "Intensified" , "increased in loudness" , "Made louder" .)