SEDGEWARBLER

AKFORTYSEVENSuspect key servant of being a mass killer (2,5-5) ONEASYSTREETRogue sees attorney rolling in it … (2,4,6) HANDKERCHIEFBlow here? (12) ABSOLUTEZEROLowest possible temperature (8,4) TEETOTALLERSThey don’t drink – tell store, tea (anag) (12) POTTERSWHEELThrow here? (7,5) NUMBERONEFANA band's most enthusiastic supporter HINDISHINDIGDiwali or Holi? LOTSAFLOTSAMA whole bunch of ocean detritus? KLINGONLINGOSome "Star Trek" slang? SNAKECHARMEROld carnival attraction REMUNERATIVEProfitable forging Vermeer at uni FOURTHOFJULYPatriotic day on which the contest at 14-Across is held: 3 wds. OVERDIDVERDIListened to "Rigoletto" way too many times?