Possible Clues:

• Lumbago
• Pain has returned — one's out of hospital
• Bet on a revolutionary complaint heard by doctor
• Pain from bending?
• Pain in rear of body
• It creates a strain after doing all the heavy lifting to support a revolutionary
• Support getting over each awfully painful experience that's behind one
• Spinal pain
• Support aircraftsman before he is a pain
• 'Stern Bill' — the bloke's a real pain