Mean to acquire a first-class figure (3)
I believe the answer is:
Here is my best explanation:
'mean' is the definition.
(aiming is a kind of meaning)
'acquire a first-class figure' is the subsidiary indication.
'a first' indicates taking the first letters.
'class figure' becomes 'im' (I am not sure about this - if you are sure you should believe this answer much more).
The initial letter of 'acquire' is 'a'.
'to' is the link.
(Other definitions for aim that I've seen before include "Direct; intention", "road?", "Set sights on, target or goal", "End", "Point (a camera)", "Objective", "Attempt", "Intention; point", "end" and "Ambition or goal".)