Expressed in figures (9)
I believe the answer is:
numerical
'expressed in figures' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for numerical that I've seen before include "of digits" , "expressed in figures" , "Relating to such as 9 or 123" , "Like Sudoku puzzles" , "Muriel can (anag)" .)