Figure, digit (6)
I believe the answer is:
number
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">figure</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that figure can be written as number)</span><br/ ><br/ >'<span class="explanation-format__original">digit</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for number that I've seen before include "Count; amount" , "Cardinal or ordinal" , "Arithmetical value; song" , "Mathematical value" , "One may be irrational or negative" .)