Possible Clues:

• Snooker break is met with incredulity in the end
• Block or thwart as in golf
• Filibuster
• Prevent (by getting in the way)
• Block or thwart an activity
• "Our Gang" member
• Misty resort at which English balk
• Snooker, of course, in the old days
• Being in the way, of course - it's so dirty with me, by the sound of it
• It's about setter's rising drug problem of old, of course