Possible Clues:

• Get limp
• What leftover salad greens do in the refrigerator
• Go limp, like a lilac
• Wither, as plants
• Droop like Chamberlain?
• Droop like a tulip
• Lose courage - you will, once
• ''The Stilt'' of basketball
• Hoops legend Chamberlain
• Lose freshness and droop