Possible Clues:

• John and Olivia film
• Film with Travolta and Newton-John
• Launderer's challenge or musical
• Agrees fatly with this
• Perhaps you get at hens there, by the sound of it
• Is there e'er some gas with it to make one fat?
• 1978 high school musical
• Musical with Rydell High
• Oil monarch's reduced comfort
• — gun; — monkey