provocateur

The Whites put up a provocateur as before a pogrom in Russia.

The provocateur is rewarded with greater liberty and special privileges.

A few detectives had also managed to find their way here, and there was even one provocateur.

You had to point out to them several times that it was Oswald who was the Castro provocateur, so to say, and not you?

The tricked boys now swear vengeance upon the provocateur, but "Dutch" is missing from the range.

More than once the charge of being a provocateur was leveled at Lenine and at Trotzky, but without justification, apparently.