Troublemaker (noun)

1. A person who causes problems or difficulties for others.
2. A person who instigates or causes trouble.
3. A person who is difficult to deal with or manage.

Origin:

From middle english troubl(e)mak(e)r, from old english trublmǣcere, equivalent to trouble +‎ maker.

Examples:

1. He is always causing trouble and is known as a troublemaker in the office.
2. The troublemaker was expelled from school for instigating a fight.
3. She was labeled as a troublemaker by the management for her constant complaints.
4. The troublemaker always seemed to find a way to stir up drama and conflict.
5. He was a troublemaker and always seemed to be at the center of any issues.