Possible Clues:

• Fail to turn out as expected
• Get up too late
• Wake too late
• Fail to heed wake-up call — past PM's making comeback!
• Remaining unconscious, will ignore the beep finally?
• Backing founder of Policemen's Balls — primarily to stay undercover too long
• Ignore the alarm?
• Elopers've exercised and wake up late
• Fail to be alarmed?
• For the rest, one may take too long