Jetties (5)
I believe the answer is:
piers
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">jetties</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 piers that I've seen before include "Supports for bridge spans" , "Jetties" , "Landing stages" , "Old ploughman" .)