Arab boat (4)
I believe the answer is:
dhow
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">arab boat</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for dhow that I've seen before include "Arab coastal vessel" , "Arab vessel with lateen sail" , "Arab lateen-rigged sailing ship" , "Arab sailing boat" , "Arab sailer" .)