Australian gathering toy (6)
I believe the answer is:
barbie
I believe this clue is a double definition.
'australian gathering' is the first definition.
(abbreviation for barbecue)
'toy' is the second definition.
(Other definitions for barbie that I've seen before include "meal out" , "Popular doll" , "Australian BBQ" , "Outdoor party" , "Famous fashion doll" .)