Possible Clues:

• Smart in dress
• Dressed to the nines
• Smart to have a teetotaller in no circumstances
• Dapper (colloq.)
• Sharp like a fly, might you say?
• Neatly smart in appearance
• It's smart to say no about a teetotaller
• Informally neat and well-dressed
• Like Beau Brummell
• A couple of tenors in The Big Apple are ingenious