Noun
One who causes trouble, especially one who does so deliberately.
A complainer.
Source: en.wiktionary.orgIf you aren't a peacemaker at least don't be a troublemaker. Isaac the Syrian
I was a born troublemaker and might as well earn a living at it. Bill Mauldin
I think, that it is our common duty from now on to stop Chinese penetration of the international Communist movement and in relation to Western powers to show China as the main present and future troublemaker. Ivan Agayants
Wisdom. No match for the troublemaker Curiosity. David Brin
Few novels or plays could exist without at least one troublemaker in the group, and perhaps life couldn't either. Mignon McLaughlin
The way of the troublemaker is thorny. Native American Proverb