Deck-swabbing tools (4)
I believe the answer is:
mops
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">deck-swabbing tools</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 mops that I've seen before include "grimaces" , "Swabs, wipes up" , "They're used to clean floors" .)