Collocations for slander - noun

gross (BrE), malicious, vicious, vile

be guilty of
sue sb for

suit (esp. AmE)
I might have grounds for a slander suit.
She could file a slander suit against him for making that statement.

slander against
He was found guilty of slander against his employers.

slander on
Many teachers saw the statement as a vicious slander on their profession.