Gambled (7)
I believe the answer is:
wagered
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">gambled</span>' is the definition.<br/ ><span class="explanation-format__explanation">(wagering is a kind of gambling)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for wagered that I've seen before include "Placed a bet" , "Gambled" , "Laid down" , "Made a bet" , "Staked money" .)