Possible Clues:

• Sensible astronauts will want to get back here
• Have to intervene in famine, that's sensible
• Realistic way to lay out on ground
• Have the landed gentry become so unpretentious?
• Sensible, and alternate title of this puzzle
• Sensible - like a fox heading for cover
• Where lightning conductor must go, to be realistic
• Sensible and practical
• *Level-headed
• Plain where parachutists come?