Possible Clues:

• Turning cool in eg end of temperate epoch
• Cooling liquid infused with Eastern energy from an ancient time
• Formed in the third epoch of the Tertiary period
• Period piece in igloo starts off melting
• Epoch of the Tertiary period
• Cool genie, suffering from old age
• Insects full of energy, one holds, in part of Tertiary
• Sounds as if Olly will go, in view of age
• Period when first primates appeared, ie, Cologne (anag.)
• Of the third epoch of the Tertiary period