Possible Clues:

• Malt liquor
• 'It's drink that's led to one's being in one's coffin there, by the sound of it (4)'
• Believers dismiss evils of the devil's buttermilk perhaps
• Tavern serving
• Foamy beverage
• Growler fill
• Brewed drink
• Kegger quaff
• Hops to it?
• Draft pick?