Answer: sandbag

AnswerCrossword Clue
SANDBAG

Balloon adjunct.

SANDBAG

Ballast unit

SANDBAG

Common balloon ballast

SANDBAG
Bank fortifier
SANDBAG
Bank protector?
SANDBAGSurreptitiously thwart
SANDBAGDike component
SANDBAGLevee accessory
SANDBAGCoerce crudely
SANDBAGBallast article.
SANDBAGItem for emergency river wall.
SANDBAGPoker term
SANDBAG1st, 2d or 3d base: Slang.
SANDBAGFlood-bulwark unit.
SANDBAGForm of protection against bombs.
SANDBAGAmbush
SANDBAGFlooding protection
SANDBAGBalloon ballast
SANDBAGFlood prevention item
SANDBAGLevee component, often
SANDBAGPart of a makeshift dam
SANDBAGEmergency levee component