Possible Clues:

• Where one might get some thin pie in the sky?
• Scraggy, scrawny
• Thin and bony
• Where you might get pie in the sky that won't make you fat
• TV channel for which pub's reception is far from 6
• Mean to find a pub in heavenly surroundings
• Pie with no fat there in the north in the sky
• Very slim
• Pub in heaven offering little of substance?
• Underfed in pub — get blue about that