An uncooperative habit? (4)
I believe the answer is:
wont
'habit?' is the definition.
(I know that habit can be written as wont)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for wont that I've seen before include "normal practice" , "Is not going to" , "Accustomed" , "Succinct refusal" , "Habit" .)