Leaving prepared (7)
I believe the answer is:
willing
I believe this is a double definition.
'leaving' is the first definition.
('will' can be a synonym of 'leave')
'prepared' is the second definition.
(I've seen this before)
(Other definitions for willing that I've seen before include "game?" , "Compliant" , "Amenable, consenting" , "Ready and eager" , "prepared" .)