Flotilla (6)
I believe the answer is:
armada
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">flotilla</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I have seen 'Large flotilla' mean 'armada' so perhaps 'flotilla' could also mean 'armada')</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for armada that I've seen before include "Fleet of armed ships" , "Large flotilla" , "Old Spanish fleet" , "The Spanish force" , "A great fleet of warships" .)