agitate for
To encourage and build support for a cause, especially by actively campaigning for it. The students have had great success agitating for more social events on campus, but the dean is still opposed to the idea.
agitate for something
to stir up active support for something. The committee agitated for a change, but nothing was done.
agitate for
v. To stir up public support for some cause or issue: The union decided to agitate for better health insurance.