Crossword clues for number that's a square of itselfAnswerClueONENumber whose square equals its square rootNINENumber of square feet in a square yardENTERINType, such as the meta answer using certain numbered squares in this gridNINESquare numberSUDOKUPuzzle with number squaresBINGOCARDGame accessory with 24 numbered squaresPOSLike a negative number squared: Abbr.EXPONENTSSquare numbers?TOPWith 107 Across, list that eight songs in this puzzle appeared on ... and a hint to the numbered squares that spell out a quote from Blur frontman Damon AlbarnTHREENumber of squares in the width and height of this puzzle's city blocksSIXTYFOURNumber of squares on a chess boardFOIUVRENumber of squares in this puzzle that contain a word meaning "elected"MAGICWord with square or numberEVENPARWhat golfers with equal numbers of squares and circles on their scorecards shootPIECESOFEIGHTPirate plunder ... or a hint to interpreting an appropriate number of squares in this puzzleNINENumber of squares in a tic-tac-toe boardNULLSETIntersection of perfect squares and prime numbersWHENIMSIXTYFOURBeatles song about the square of their numberMARCHMADNESSAnnual college basketball tourney, rounds of which can be found in the circled squares at their appropriate numbersONENumber that's a square of itselfONENumber equal to its squareEXRANGERSHonorees of some retired numbers hanging in Madison Square GardenONENumber that's its own squareFSTOPSetting numbered in multiples of the square root of 2ONENumber that's its own square rootONENumber that is its own square rootSEISSquare root of this clue number, in SpanishBINGOCARD5x5-square sheet for a number-calling gameONENumber in this crossword's northwesternmost squareNINENumber of herds of elephants at Madison Square.NINEThe square of the sum of this clue number's digitsADELEArtist with one album named after a prime number and one named after a perfect squareTWOIts square root was likely the first known irrational numberTENNumber of mispelled words in this puzzle's clues (oh, by the way, watch out for those tricky circled squares!)