Crossword Clue:

to define wrongly

Answer	Crossword Clue
ELUSIVE	Hard to define.
ELUSIVE	Hard to define
XFACTOR	Hard-to-define influence

XFACTOR	Hard-to-define element
ART	Something famously impossible to define
ART	Notoriously hard thing to define
WEEDEATER	It's used to define a border
CAMP	Notoriously hard-to-define aesthetic style
SEX	Hard-to-define word of recent times
THEXFACTOR	Hard-to-define element, or a hint to what can precede each last word in answers to starred clues