Answer: staking

AnswerCrossword Clue
STAKINGBoundary markers
STAKINGSupporting, as tomato plants
STAKINGPlacing as a bet
STAKINGBetting.
STAKINGRisking.
STAKINGGambling
stakingSTAKE, to fasten with a pointed piece of wood or metal
stakingSupport (a tree or plant) with a stake or stakes
stakingBe assertive in defining and defending a position or policy
stakingMark an area with stakes so as to claim ownership of it