Possible Clues:

• Topped-up Irish broadcaster put on both sides of long-player backwards swamped by echoes
• Full theatre -- allow encore at the end
• Full permit given to salesman with energy
• Filled, well supplied
• Having had quite enough of consumer goods?
• 'Fully fold once more, by the sound of it (7)'
• Abundantly filled (with)
• Make a full fold again, by the sound of it
• Well-supplied
• Theatre permitted audience finally full