Wreckage found floating (7)
I believe the answer is:
flotsam
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">wreckage found floating</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 flotsam that I've seen before include "Wreckage adrift at sea" , "Washed-up wreckage" , "Wreck" , "Detritus" , "Things found floating from a ship" .)