Yapped (6)
I believe the answer is:
yelped
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">yapped</span>' is the definition.<br/ ><span class="explanation-format__explanation">('yelp' can be a synonym of 'yap')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for yelped that I've seen before include "Made shrill sound as of dog" , "Uttered sharp barks" , "Cried out sharply" , "(Dog) cried in pain" , "Uttered short cry like a dog" .)