Possible Clues:

• Impressed by eastern flight
• Deems apt to have flight of cattle
• Marked by a note of panic
• Mad rush to get stuffed in the Home Counties
• Broken step made for unstable flight
• Panicky run
• Mass movement at a fearfully fast tempo
• Rapid flight impressed with Concorde, ultimately
• Herd's headlong rush
• Stone, a block I removed in mad rush