Crossword Genius

Engineer a reign so corrupt (8)

Ross

I believe the answer is:

organise

'engineer' is the definition.
('engineer'->'organize' is in my internal thesaurus and 'ize'->'ise')

'a reign so corrupt' is the wordplay.
'corrupt' indicates anagramming the letters.
'a'+'reign'+'so'='areignso'
'areignso' anagrammed gives 'ORGANISE'.

(Other definitions for organise that I've seen before include "Plan, direct, co-ordinate" , "Arrange - as region (anag)" , "Catalogue" , "run" , "Set up, co-ordinate" .)

I've seen this clue in The Telegraph.
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