Figure representing an integer (7)
I believe the answer is:
numeral
'figure representing an integer' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for numeral that I've seen before include "Affable and sociable" , "Symbol representing one or two, perhaps?" , "Rule man (anag) - digit" , "Mathematical figure" , "Figure or symbol like '1', for example" .)