Lion's cry (4)
I believe the answer is:
roar
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">lion's cry</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 roar that I've seen before include "Jaguar, for example, emits this" , "Loud cry" , "Great cry" , "Make a loud noise" , "Noise of lion" .)