Crossword Genius

Crazy heir, way out (7)

Ross

I believe the answer is:

haywire

'crazy' is the definition.
(I've seen this before)

'heir way out' is the wordplay.
'out' is an anagram indicator (out can mean wrong or inaccurate).
'heir'+'way'='heirway'
'heirway' anagrammed gives 'HAYWIRE'.

(Other definitions for haywire that I've seen before include "Out of order -- erratic" , "Erratic, out of control" , "All over the shop" , "Not working properly" , "Erratic (colloq.)" .)

I've seen this clue in The Times.
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