Crossword Genius

Don’s neighbour has called in disarray (7)

Ross

I believe the answer is:

derange

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

'disarray' is the definition.
(thesaurus)

'don's neighbour has called' is the wordplay.
'don's neighbour' becomes 'dee' (I can't explain this - if you can you should give a lot more credence to this answer).
'has' is an insertion indicator.
'called' becomes 'rang' (called on the phone).
'dee' going around 'rang' is 'DERANGE'.

'in' acts as a link.

Can you help me to learn more?

(Other definitions for derange that I've seen before include "cause confusion" , "Make mad" , "Drive mad" , "Put into confusion" , "Upset" .)

I've seen this clue in The Times.
Want a hint initially instead of a full solution? Install my app