50-50 odds (5)
I believe the answer is:
evens
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">50-50 odds</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for evens that I've seen before include "less likely than 27 [ODDS-ON]" , "Odds on something very likely to win" , "Odds that win identical sum as the stake" , "Makes equal" , "Kind of betting odds on seven" .)