Possible Clues:

• Watering hole?
• Century of Byron's death
• The hole in the bar after the round, of course
• Boozer's haunt, an absolute hole!
• Finish one round, then have another in this watering-hole?
• Last of a dozen irrepressibly talking?
• Not quite in position to make a score
• What a hole - but the drink flows here!
• & 12 Bar, of course, two prominent extractions, canine teeth have new filling and cavity
• & 28 Fancy hotel (e'en the inn!) is where one might get a drink