Bank amounts (8)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bank amounts</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 balances that I've seen before include "Keeps in equilibrium, like credits and debits" , "Scientific instruments" , "Equalises, offsets" , "Tallies" , "Is poised; sums in account" .)