Don't leave any more in this dire shambles (10)

I believe the answer is:

disinherit

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

'don't leave any more' is the definition.
I can't judge whether this definition defines the answer.

'in this dire shambles' is the wordplay.
'shambles' is an anagram indicator.
'in'+'this'+'dire'='inthisdire'
'inthisdire' with letters rearranged gives 'DISINHERIT'.

Can you help me to learn more?

(Other definitions for disinherit that I've seen before include "Remove as heir" , "Write out of a will" , "Lanarkshire town" , "Cut off as with a shilling" .)

I've seen this clue in The Telegraph.

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