Suckers (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">suckers</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 saps that I've seen before include "mugs" , "Weakens, deprives of energy" , "Pass around foolish people" , "trenches" , "Vital juices" .)
(Another definition for vacs that I've seen is " Holidays (abbreviation); rhymes with 9ac".)