Newt (3)
(Other definitions for aft that I've seen before include "Towards the back on board" , "Astern" , "towards the end" , "At the back of a ship" , "Towards rear (of ship)" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">newt</span>' is the definition.<br/ ><span class="explanation-format__explanation">(eft is a kind of newt)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for eft that I've seen before include "Juvenile twenty-three Ac; rhymes with sinister" , "Slimy creature" , "Juvenile newt" , "Swimmer with feeble legs" , "Kind of newt found in clefts" .)