Large sailing ship (7)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">large sailing ship</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 galleon that I've seen before include "One might sink" , "Large Spanish sailing ship of yore" , "All gone (anag.)" , "Trader" , "Large old sailing vessel" .)