PERSISTENCE

GRANDEDAMESDignified doyennes ISAACNEWTONConservative cracking nuts was Etonian genius FUNCTIONING? PETPASSPORTDocument used for a travel companion who might sit under a seat DOUBLEDUTCHGreek bigamist's requirement? GAMEWARDENSConservation officers OSTENTATIONVulgar display GRAVEACCENTMark on apres WORKINGGIRLSee note SPACETRAVELSci-fi staple MIDDLESEATSThey might be the last to be booked on an airplane GROUPSELFIEIt's a lot for one person to take HAIRTRIGGERDevice on a firearm that responds to the slightest stimulus DOWNTHELINEAt a later date