Ill intent (6)
I believe the answer is:
malice
'ill intent' is the definition.
(malice is ill intent or intent to do harm)
This is all the clue.
(Other definitions for malice that I've seen before include "Spite or spleen, perhaps aforethought" , "Hate" , "Ill will, a desire to harm others" , "Spite and rancour" , "Malevolence, spite" .)