Sort of boomerang likely to lose line and deviate (5)
I believe the answer is:
Here is my best explanation:
'sort of boomerang' is the definition.
I cannot understand how the remainder of the clue works.
(Other definitions for kylie that I've seen before include "Type of boomerang", "Aussie singer", "-- Minogue, Australian singer", "Dannii M's older sister" and "returning missile".)