Finger or toe (5)
I believe the answer is:
digit
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">finger</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >'<span class="explanation-format__original">toe</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(digit on a foot)</span><br/ ><br/ ></span>
(Other definitions for digit that I've seen before include "Need a bit of a hand" , "Finger; number" , "Single figure - finger" , "a number less than ten" , "A character" .)