Related Clues:

• See 55-Across
• Guinness specialty
• Club ___
• It may have a big head
• Mixologist's staple
• Black and tan ingredient
• Bar offering
• See 44-Across
• Ballantine brew
• Bitter, to a Brit
• Fountain drink
• Pitcherful, maybe
• Pub pint
• Porter
• Schooner's cargo