OPERATINGSYSTEM

INCOMPLETEGRADEI may stand for it BOLTONWANDERERSEccentric wore brand stolen from football club ASANENDINITSELFHow humanity exists, per Kant COLORADOSPRINGSDesperately poor lad crossing city BOOGIEDOWNBRONXHip-hop's birthplace, colloquially LOSTONESDIGNITYDidn't save face SEEMSREASONABLE"That's not so outrageous" VOICECONTROLLEDSmart, in a way ADVENTCALENDARSTheir last windows are opened on Christmas Eve ARMOREDDINOSAURAnkylosaurus, for one HAVETHELASTWORDGet final say in an argument, e.g. INCIDENTALMUSICPopular tune - claim disc misrepresented original theatrical version? PUTAFACETOANAMEFinally meet in person, or how to make the starred clues match their answers LAUGHOUTOFCOURTRefuse to consider some fun, having nowhere to play tennis?