Broad boat (4)
I believe the answer is:
scow
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">broad boat</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for scow that I've seen before include "Flat-bottomed boat for cows" , "Wide-beamed dinghy" , "Maybe lighter" , "Unpowered freight barge" , "Low boat" .)