Setter fetter (5)
I believe the answer is:
leash
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">setter fetter</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 leash that I've seen before include "Spanish city famous for swordmaking" , "Strap for holding a dog while walking" , "Line for holding dog" , "Restraining strap for dog" , "Rope used to restrain an animal" .)