Domesticated bird (4)
I believe the answer is:
fowl
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">domesticated bird</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 fowl that I've seen before include "Bird to be eaten or hunted as game" , "Any farmyard bird" , "Poultry bird" , "Bird, maybe domestic" , "Bird kept for eggs and meat" .)