Related Clues:

• Begin to put your foot down in a runway way
• Not the sort of run for 11 across, if you put your foot down first
• Put it on the letter to start the runaway
• Start ot put on the letter and run away with it
• It gets blown up
• Look across?
• If it gets blown up, the old town is all on the ground
• Start to put one's foot down in a runaway way
• 9 down or blow it up
• Start to put your foot down and quickly get away with it
• Frightful flight
• Deep mats make for a frightful run
• A frightful flight for 4 across
• So one has had to stop, for a change
• 'Blow this up or change it (4,4)'