Answer: nine

AnswerCrossword Clue
NINE2007 Jeffrey Toobin book, with "The"
NINEMuse count
NINEHalf a course
NINEWorkday debut
NINEBall team quorum
NINEDiamond number
NINEInning allotment
NINESupreme Court, e.g.
NINEPrime-time hour
NINETed Williams's number
NINERoger Maris's jersey number
NINELate rush hour hour
NINEMusical based on a Fellini film
NINEA perfect square
NINEWest Coast ZIP-code starter
NINE... Elms (London district where Vauxhall Motors was founded)
NINEMuse group
NINEOpening time
NINEPrime time hour Thomas
NINE1982 and 2003 Tony winner
nineeight plus one
NINEStart of the day, to many
NINENot exactly a ten
NINENumber of Muses
NINENumber on a diamond
NINESayers' "The .. Tailors"
NINESayers' "The .... Tailors"
NINEThree square
NINE1-2 a round
NINEBaseball number
NINEBaseball team
NINECloud .... (elated state)
NINEWorkday start, for many
NINE1982 musical based on Fellini's life
NINE2100 hours
NINECommon starting time
NINEThree square (4)
NINEBand of Pirates?
NINECloud .. (elated state)
NINESquare root of 81