Laughing jackass (10)
I believe the answer is:
kookaburra
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">laughing jackass</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for kookaburra that I've seen before include "winger in Australia" , "Strident Australian" , "He may be laughing!" , "Large kingfisher (aka laughing jackass)" , "Australian bird" .)