Possible Clues:

• Rocket case needs repair - behind schedule
• Mount with a castle, out East
• For the case to get broken and get dead makes it get more so
• Increase when the case is unpacked at bedtime?
• Mount an escape before Alan dug in
• Increase in extent or intensity (8)V
• Ramp up case cracked after deadline
• Cancel key atomic meeting behind rocket
• Heighten
• Expand radio station in the middle of Exeter, with completion on schedule