Answer: byo

AnswerCrossword Clue
BYO"Liquor not provided," invites
BYOInvitation qualification
BYOLetters on a party invitation
BYO"Brown-bagging allowed" sign
BYOParty req.
BYOParty abbr. about drinks
BYOCaveat on a party invitation: Abbr.
BYO"I'm not supplying," on invitations
BYOParty letters
BYO"Liquor not provided"
BYO"We're not providing"
BYOInvitation letters
BYOParty invitation inits.
BYOCaveat initials on a party invite
BYOInvitation initials
BYO"Liquor not provided," for short
BYO"Liquor not provided" letters
BYOParty invite inits.
BYOIntoxicating letters?
BYOBrief advice to drinkers