Bones of the foot (5)
I believe the answer is:
tarsi
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bones of the foot</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 tarsi that I've seen before include "Bones of the ankles and heels" , "parts of leg" , "collections of bones?" , "Parts of skeleton" , "Ankle bones" .)