Ditching Bonn mandate perverse (11)

I believe the answer is:

abandonment

I'm a little stuck... Click here to teach me more about this clue!

'ditching bonn mandate perverse' is the definition.
I can't judge whether this definition defines the answer.

'bonn mandate perverse' is the wordplay.
'perverse' indicates an anagram.
'bonn'+'mandate'='bonnmandate'
'bonnmandate' with letters rearranged gives 'ABANDONMENT'.

Can you help me to learn more?

(Other definitions for abandonment that I've seen before include "Process of giving up completely" , "being neglected" , "leaving" , "surrender" , "Act of desertion" .)

I've seen this clue in The Times.

Want a hint initially instead of a full solution? Install my app