Remote control button (4)
I believe the answer is:
mute
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">remote control button</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 mute that I've seen before include "Speechless, soundless" , "Silencer" , "Silent, refraining from speaking" , "Silent, not talking" , "Silent - dumb" .)