Honey, beer, up front about tree (9)

I believe the answer is:
melaleuca
But I can't explain it at all! Could you help me understand?
(Another definition for melaleuca that I've seen is " tree down under".)

I believe the answer is:
melaleuca
But I can't explain it at all! Could you help me understand?
(Another definition for melaleuca that I've seen is " tree down under".)