Possible Clues:

• Spare
• Tavern in heaven not serving stout?
• 'Scrawny, weedy (6)'
• There might be pie there in what it's in
• Very thin bar crossed by broadcaster
• Bar in heaven, far from stout!
• Very thin air around watering hole
• There there may be a pie in the sky that won't make one fat
• Thin, bony
• Slender