Sculls (4)
I believe the answer is:
oars
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sculls</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for oars that I've seen before include "Manual boat propellers" , "Rowing blades" , "These could make you row" , "Means of propulsion" , "Al --, US gangster" .)