Crossword Genius

What broken door might be -- off the wall! (8)

Ross

I believe the answer is:

unhinged

I believe this is a double definition.

'what broken door might be' is the first definition.
(as in a door that's off its hinges)

'off the wall' is the second definition.
(both can mean crazy)

(Other definitions for unhinged that I've seen before include "not flapping?" , "Deranged" , "End I hung out to be mentally unbalanced" , "Mentally unbalanced like defective door?" , "characteristic of door after dislodgement?" .)

I've seen this clue in The Telegraph.
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