Figure one gets half a dollar (4)
I believe the answer is:
idol
'figure' is the definition.
(I've seen this before)
'one gets half a dollar' is the wordplay.
'one' becomes 'i' (Roman numeral).
'gets' is a charade indicator (letters next to each other).
'half a' indicates taking half.
'dollar' cut in half is 'dol'.
'i'+'dol'='IDOL'
(Other definitions for idol that I've seen before include "pop star" , "Figure worshipped - sounds like someone in 7 8" , "someone admirable" , "Favourite" , "Effigy" .)