Possible Clues:

• Fast runner on slow film
• So to polish up about half a century would not clear it
• Pop group curtailed promotional material
• Puff endlessly, in dubious shape
• Her Sky went high
• This Brit-pop band is a bit hazy
• Vision problem
• Haze — obscure
• Be leaving rubble creating confused impression
• Obscure second book excluded from publisher's promotion