Possible Clues:

• *Often-restricted zone
• What pilot goes through with pride, gaining speed
• Through which planes are generally controlled
• Top-class run with special pilot may take place here
• Setting for soaring song's tempo
• Not the accommodation for down-to-earth travellers
• Musical tempo above ground?
• Region controlled by government that's above us all
• A country's flying zone
• It's used by pilot going over parts of Paris