Sow sound (4)
I believe the answer is:
oink
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sow sound</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for oink that I've seen before include "what we hear from Berkshire?" , "Piggy noise" , "Beastly sound" , "Sound from a sty" , "Piggish noise" .)