Unfortunately you're going to have to tear the extruder head apart and clean the nozzle. There are kits like the following (found on Amazon - No affiliation):

What you need to figure out though, is why it clogged in the first place. More than likely you tried to extrude filament before the nozzle was up to temperature. If your readout said it was good, then you need to get a no-touch thermometer and check the nozzle for the proper temperature prior to printing to ensure it's all good.