Figure meal run out (7)
I believe the answer is:
numeral
'figure' is the definition.
(I've seen this before)
'meal run out' is the wordplay.
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'meal'+'run'='mealrun'
'mealrun' anagrammed gives 'NUMERAL'.
(Other definitions for numeral that I've seen before include "one involved in maths?" , "Affable and sociable" , "Such as 5, 9, iii, etc" , "Figure denoting a number" , "1, 2, 3, for instance" .)