The term 'MARCH INTERRUPTER, MAYBE' can be solved by the crossword solution TEARGAS, which is a seven-letter word. Tear gas is a chemical weapon that is used to disperse crowds or control riots. It is composed of an aerosol of a volatile organic compound and is usually deployed in the form of grenades, smoke bombs, or sprays. It causes irritation to the eyes, nose, throat, and lungs, and can cause difficulty breathing, coughing, and vomiting. It is often used by law enforcement to disperse protesters or rioters.