Crossword clues for ___ upon a . . . 4 lettersAnswerClueUPONFairy tale wordUPONAboveUPONAt the occasion ofUPONBroadway's "Once ___ a Mattress"UPONSecond word of many a fairy taleUPONOnce _____a MattresssUPONSecond word in most fairy talesUPONSecond word of "The Raven"UPONWord before "my word"UPONLying atopUPONWhen You Wish ___ A StarUPONSecond word in "The Raven"UPONSoon afterUPONAcquainted withUPONConversant withUPONSecond word in fairy tales, oftenUPONRead ___ (study)UPON___ my word!UPONSurmountingUPONOnce/a time go-betweenUPONInformed aboutUPONCurrent aboutUPONSituated atopUPONOnce ___ a MattressUPONIn the know aboutUPONToppingUPONConnector of days and days?UPONChance ___ (happen to meet)UPON___ the Roof (Drifters hit)UPONFairy-tale prepositionUPONObviously following closelyUPONWell informed aboutUPONOnce __ a midnight dreary...UPONShortly afterUPON___ the Roof (1962-63 hit for the Drifters)UPONHaving studiedUPONApprised ofUPONAt the top ofUPONStratford-___-AvonUPON___ the Roof (1963 Drifters hit)UPONVery familiar withUPON___ Cripple Creek (1969 hit for "The Band")UPONBerwick-___-Tweed, EnglandUPONVery soon afterUPONResting atopUPONAt the very moment ofUPONFollower of 30 AcrossUPONSecond word of many fairy talesUPONSeated atopUPONInformed