Possible Clues:

• Eleventh-hour dying breath
• Desperate friend returning to grab good person and chatter
• Done in desperation at the final moment
• 'Final breath (4,4)'
• Final breath or done at the last possible moment of effort
• Final flag hoisted above ship's stern, done in desperation at the eleventh hour
• Desperate final attempt
• Tap glass for refreshment at 10:59:59?
• Final, often desperate attempt
• At the eleventh hour, when one has run out of pants?