Our emblem (green lilies) regularly garland lair acquiring power (6,6)

I believe the answer is:

golden wattle

I'm a little stuck... Click here to teach me more about this clue!

'power' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.

'our emblem green lilies regularly garland lair' is the wordplay.
I cannot quite understand how this works, but
'lair' could be 'den' (synonyms) and 'den' is found in the answer.
This explanation may well be incorrect...

'acquiring' acts as a link.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.