Answer: ratpoison

AnswerCrossword Clue
RATPOISON

Skull-and-crossbones site

RATPOISON

Strychnine, e.g.

RATPOISON

Squealer's just deserts?

RATPOISON
Mystery offer?
RATPOISON
Thallium sulfate, e.g.
RATPOISONRodent's last meal, maybe
RATPOISONRodenticide
RATPOISONOne use for arsenic