Drifting (6)
I believe the answer is:
afloat
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">drifting</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for afloat that I've seen before include "On board a ship or boat" , "At sea - in circulation" , "At sea, on the water" , "On the surface" , "get out of debt" .)