Crossword clues for Open. 15 letters:NINETEENTHHOLESThey're open at some opensTHERITEOFSPRINGIt opens with a 75-bar bassoon soloOFFTOAGOODSTARTOpening wellEXHIBITIONGAMESOpenersDEGREEOFFREEDOMAmount to which one may openly actSAKSFIFTHAVENUEIt opened in Manhattan in 1924MOMENTOFTHEHEATTime when an oven door is opened?FEGATELLOATTACKChess openingVICTORIASSECRETRetailer that hired its first openly transgender model in 2019WHIFFOFFRESHAIR*You might open a window for oneDEATHBENOTPROUDHoly Sonnet 10 openerAMATEURMUSICIANOpen-mic night player, perhapsTHINKOUTSIDETHEBox opener?OHTOBEINENGLANDBrowning opening line preceding "Now that April's there"INEEDSOMEADVICEColumn openingBOTTOMLESSPINOTPromo line for an open wine bar?CHANCEOFALETIMEOdds that the pub is open?STRAIGHTFORWARDOpen.SEVEBALLESTEROSBritish Open champ: 1988CALIFORNIAGIRLSPerennial 23-Across concert openerHELLOIMMISTEREDOpening line from a TV show that debuted on 1/5/61TOOTHEXTRACTIONIt creates an opening at the dentist's officeSEASONHOURSMIKEThree open closersTHREADTHENEEDLESome do this with one eye openANNIKASORENSTAMTwo-time Women's Open winnerLEONOREOVERTUREOpener at an all-Beethoven concert*BARQUESTIONROADThree open closersDOORBOOKCOUNTRYThree open closersLIVEFROMNEWYORKClassic opening line from an NBC sketch showTHERIGHTSOFBILLClinton's a well-known southpaw, so this exposé on his other-handed punches is an eye-openerFOURKNIGHTSGAMEChess openingHAMMERANDCHISELThief's lock openerDIVETHRUWINDOWSOpenings to jump out of?ROADTOSINGAPORECrosby/Hope series opener, with "The"LEARNHOWTODRIVEWords shouted out an open windowCOUNTERFEITBILL... opened an account with a __, ...CHAMPAGNEBOTTLEContainer to be opened soonMAJOROPERATIONSOpen-heart surgeries, e.g.SICILIANDEFENSEChess openingJUSTWHATINEEDEDGift opener's exclamationINBROADDAYLIGHTOPENLYPRIVATEOXANDREDEye openers?CLOTHEMELBOURNEBuy Australian Open jackets for everyone in its city? (2007--careful!)WHENIWASYOURAGEOpening for some nostalgic storiesLIGHTSUPTHEROOMBurns an enemy by dramatically throwing open the curtains, as a 56-Across?FIRSTTHEBADNEWSMessenger's opening, perhapsENTRANCERAMPAGESite at a store's Black Friday opening?EVONNEGOOLAGONGWinner of four Australian OpensLISTENSTOREASONKeeps an open mindTHECOLTREVOLVERWeapon important in the opening of the West