Answer: sir

AnswerCrossword Clue
SIRFormal letter addressee
SIRTitle for some distinguished English musicians with penises
SIRBoot camp word
SIRHerr, here
SIRTitle for Coward
SIRCoward or Oliver
SIRTitle
SIRBusiness greeting
SIROfficer, to a grunt
SIR.. Barton, 1919 Triple Crown horse
SIRRound Table address
SIR... sandwich (military response format)
SIRElton's title
SIRRound Table title
SIRMilitary address
SIRKnight's address
SIRPrivate address?
SIRCamelot title
SIRDear fellow?
SIRBoot camp address
sirto use a respectful form of address to a man
SIRCertain honorific
SIRGiuliani title
SIRKnight's title
SIRKnightly title
SIR"To .. With Love"
SIRBase address
SIRMa'am's counterpart
SIROfficer's address
SIRPoitier, as Lulu called him
SIRTitle for Galahad
SIR'67 Poitier role
SIRGiuliani's title
SIRJousting title
SIRTitle for Elton John
SIRDubbed one
SIRLetter addressee, often
SIRLike Lancelot
SIRTerm of address that might make you feel old
SIRAddress at boot camp