Possible Clues:

• This is bound to fall sometime when it does you'll have some headache
• Turns up, the foreign firm is crazy to open financial office in Swords - it's a hangover from a previous time
• Sod's Law? Doc for me, suffering terrible hangover!
• Refers to an extremely precarious situation that's in suspension and only a hair's breath away?
• Impending threat that could make some old cowards start to flee
• Hanger-on in class doomed, for failing to grasp minimum of workings
• Visible prospect of imminent calamity hanging over one
• Impending disaster made some cowards fold, rattled