A petition for is a formal request made to an authority or organization. It is usually written and signed by a group of people, and it typically includes a list of grievances or demands. The two crossword solutions for the term 'petition for' are 'SOLICIT' and 'ENTREAT'. SOLICIT means to ask for something in an earnest or urgent manner, while ENTREAT means to make a humble or earnest plea. Both words can be used to describe the act of making a petition for something.