Intentional (6)
'intentional' is the definition.
(synonyms)
This is all the clue.
(Other definitions for wilful that I've seen before include "Disposed to disobedience and opposition" , "Obstinate, done with deliberate intention" , "Deliberately disobedient" , "Perverse" , "Done deliberately, not an accident" .)
'intentional' is the definition.
(I know that intentional can be written as deliberate)
This is all the clue.
(Other definitions for deliberate that I've seen before include "Consider carefully" , "muse" , "debate" , "Studied" , "Done consciously" .)
'intentional' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for planned that I've seen before include "Prepared carefully in advance" , "Laid out; intended" , "Arranged in advance" , "Designed, plotted" , "Intended or designed" .)