Related Clues:

• Descent before the parachute opens
• Plunge head first
• Time before the parachute opens
• Sudden drop
• Occurrence before the chute opens
• Disastrous event as to overheated nuclear reactor
• Steep downward plunge by aircraft
• Disastrous event like overheating of nuclear reactor as in Chernobyl
• Disastrous overheating of core of nuclear reactor
• That's the way to get down to it as fast as possible
• Such a comedown, but you won't have to pay for it, even without a parachute
• Loss of self-control
• With these numbers, the editor and I have to take the plunge
• Numbers need editor: the crossword setter's taken the plunge
• A quick drop for one waiting for opening time