Possible Clues:

• Itch to have a try once
• Gang lost in middle of flood finding way back
• Ages back
• Yearn to have a turn but not recently
• Not recently a lengthy green light
• 8 in time to see number (including silencer)
• Time of many a fairy tale
• Ancient pine, with a 50% reduction in leaves
• Not recently
• Not, in short, an ancient green light