Crossword clues for Rare 15 letters:LIMITEDEDITIONSSome rare booksONCEINABLUEMOONRarelyONCEINALIFETIMERareSUMMERSNOWFLAKERare August fallingBESTKEPTSECRETSThey're rarely discoveredSTERNDISCIPLINESomething an overindulged child rarely experiencesLIMITEDEDITIONSRare copiesHIDDENBALLTRICKRarely successful diamond playONCEINALIFETIMEVery rarely indeedFATHERKNOWSBESTRare utterance from Mom?COLLECTORSITEMSRare comics and vintage dolls, e.g.ONCEINALIFETIMEExtremely rareUNCOMMONMONKEYSRare primates?ONCEINALIFETIMEVery rareBLACKANDWHITETVRarely seen entertainment unitHITSFORTHECYCLEAchieves a rare baseball feat, delineated by part of each long puzzle answerAMERICANBUFFALOMamet play featuring a rare nickelPNEUMONOULTRAMIWith 37- and 60-Across, a rare disease of miners (and the longest word in the English language)ONCEINALIFETIMERarelyBESTKEPTSECRETSThey rarely see the light of daySTARQUARTERBACKAthlete who rarely gets sacked or has a pass interceptedONCEINALIFETIMERarer than rareONCEINABLUEMOONRareORANGEDOORHINGEColorful (albeit rare!) rhyme for an item at a hardware storeMACHINEWASHABLELabel rarely seen on silk garmentsEIGHTTRACKTAPESThey're rarely played nowadaysHUNDREDYARDRUNSRare gridiron capersFMRADIOSTATIONSTheir waves rarely interfere with each otherSTRAIGHTFLUSHESRare handsONCEINABLUEMOON*Very rarelyWHATSFORDESSERTSomething rarely posed when fullEXTRAEXTRAEXTRARarely heard shout, nowadaysRARELike expensive Beanie BabiesRAREESStreet showsRARESHard-to-find collectiblesRAREUnusualRARESought by philatelistsRAREHighly collectibleRARELike a royal flush or some Honus Wagner baseball cardsRARESought after by numismatistsRARENot well doneRAREHard to findRAREMore red than pinkRARELike fine artRARESteakhouse specificationRARESUncommon collectors' itemsRARES___ up (stands on hind legs)RAREEKind of street showRAREBloody, meat-wiseRARELike "a day in June," per a poem, even though there are thirty of them and they happen annually
