Answer: gumtree

AnswerCrossword Clue
GUMTREEEucalyptus, for one
GUMTREEKookaburra's roost, in a kid's song
GUMTREEEucalyptus
GUMTREEEucalyptus, e.g.
gumtreea tree that yields gum
gumtreegum 3