Bang-a-__; Australian-Themed 1975 ABBA Song
Puzzle 15 of New Year's Resolutions Easy Pack
Question is: Bang-a-__; Australian-Themed 1975 ABBA Song
and the answer is: BOOMERANG
Word Meaning:
BOOMERANG — Any of various traditional throwing sticks used for hunting or combat by Australian aborigines, including the symmetrical, crescent-shaped, type (the returning boomerang).
Definitions from Wiktionary.