Foot digits (4)
I believe the answer is:
toes
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">foot digits</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 toes that I've seen before include "What Pobble lacked (Lear)" , "Foot digits" , "Divisions of foot front" , "Lower digits" .)