Related Clues:

• A billion years (var.)
• Christmas almost set up in plenty of time
• Regularly in Cape Town for a long time
• Trotsky missed out on Liberal period
• Clear speaking
• Individual cycling round a long time
• Take time out of school period
• In time, long division ends in 127
• Age of person experiencing upsurge in energy
• Very long period (US)
• Name Fleming had, say, for a very long time
• Prolonged period in English cricket side
• A very long period
• For starters, eat oysters? Never in a thousand million years
• Development of one billion years