Back-hander (5)
I believe the answer is:
bribe
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">back-hander</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for bribe that I've seen before include "Money offered to corrupt" , "Corrupt payment" , "Illegal incentive" , "Sweetener, back-hander" , "Dishonestly persuade" .)