Deuces (4)
I believe the answer is:
twos
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">deuces</span>' is the definition.<br/ ><span class="explanation-format__explanation">('two' can be a synonym of 'deuce')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for twos that I've seen before include "Couples" , "Deuces" , "Pairs" .)