Clash (inspired) city rockers the Suspects headline a benefit for the strike fund of Justice for Janitors, the Service Employees Union campaign that is driving Oliver T. Carr crazy and just might make the city’s tax structure more equitable to boot. Sponsored by Positive Force, the show also features the Metamatics, Jury Rig, and Modern Space Map, and begins at 7 p.m. at the S.E.I. Union Hall, 1213 K St. NW. $5. (703) 276-9768. (Mark Jenkins)