Little bills (4)
I believe the answer is:
ones
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">little bills</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ones that I've seen before include "Singles" , "Singletons" , "Units" , "Aces" , "Individuals" .)