Possible Clues:

• Brussels ruined typical producers of oil
• Group of nations thus abandons song: it backed oil producers
• Typical male fleeing from emu, camouflaged in trees
• WI song so neglected in Brussels it upset oil suppliers
• Australian natives and another wasting money — flaming typical
• A clue: pity poor natives of Australia!
• Typical reforms suppressed by Brussels oil producers
• Clue deciphered about a central cluster of Egyptian trees
• Aromatic trees
• Gums cut? I pay dental practice, ultimately for treatment