Two-masted vessel (10)
I believe the answer is:
brigantine
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">two-masted vessel</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for brigantine that I've seen before include "Two-masted sailing ship" , "Boat" , "vessel" .)