Yes, the weather's reasonably okay now, for the time of year- thanks for asking.
#5 is correct- second version with "lang". (I know how to spell "billabong", thank you very much)!
#1 is not FUNDIN.
#3 is not TEVILDO, though that's certainly an ingenious guess. "Teeth" is the straight part of the clue, however.
1. He seems entertaining, but dreary on reflection.
2. Steal before confusion; arrive at lonely place.
3. ...nine lives? Perhaps if you reassemble him- and give his teeth back.
4. Note at the heart of his personality reveals him.
BILBO Lose little speech, and you may find this small chap in an Australian waterhole.
6. Support group for author's vice? In the turmoil, behold the breaker of mountains!
The theme should make things easier once it becomes apparent. BILBO is perhaps not the best starting point, though.