Possible Clues:

• Climbing tree without one instance of falling back
• Fail to maintain progress in run: get moving, please
• Slip back to former state
• Downturn in health (after improvement)
• Restoration architect's deterioration
• Before recess relative took a turn for the worse
• Slip back, deteriorate
• A return to illness
• Problem during convalescence
• To fall back is a mistake by soldiers