Small boats (8)
I believe the answer is:
dinghies
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">small boats</span>' is the definition.<br/ ><span class="explanation-format__explanation">(dinghy is a kind of small boat)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for dinghies that I've seen before include "Small rowing boats" , "Small open boats" , "On the surface, they go along" .)