Advance amount (4)

I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">advance amount</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ante that I've seen before include "Betting stake" , "A neat sort of prefix" , "not post" , "Stake put up before the deal" , "Fixed stake" .)