Shoelace sheath (5)
I believe the answer is:
aglet
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">shoelace sheath</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 aglet that I've seen before include "Metal tag on shoelace" , "Tag at end of a shoelace" , "Tube at end of shoelace" .)