Old sailing ship (7)
I believe the answer is:
galleon
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">old sailing ship</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 galleon that I've seen before include "Trader" , "One might sink" , "Historical warship with three or more masts" , "Large Spanish sailing ship of yore" , "Ship of the line" .)