Equip with the half-year figure (3)
I believe the answer is:
arm
'equip' is the definition.
(I've seen this before)
'with the half-year figure' is the wordplay.
'with' says to put letters next to each other.
'the half' suggests halving the letters.
'figure' becomes 'm' (I can't explain this - if you can you should believe this answer much more).
'year' cut in half is 'ar'.
'ar'+'m' is 'ARM'.
Can you help me to learn more?
(Other definitions for arm that I've seen before include "Equip with a limb" , "Accoutre" , "Ram into limb" , "Human limb" , "Authority" .)