Related Clues:

• A long story or poem - it's a gas
• Spun thread or wool
• An airy turn to a long tale with a city, likewise
• The turn-up of an atmosphere won't cut a long story short
• A great gas up for a great tale
• Long to tell this, over the city, likewise
• Over the city the tale is long likewise
• It may span decades
• Fisherman's relation?
• Long, heroic story
• 'The Lord of the Rings,' e.g
• "The one that got away" retelling
• The "Star Wars" films, e.g
• Story spanning decades
• "The Thorn Birds," e.g