God, New York is complex (6)

I believe the answer is:

thorny

'is complex' is the definition.
(thesaurus)

'god new york' is the wordplay.
'god' becomes 'Thor' (Norse god of thunder).
'new york' becomes 'ny'.
'thor'+'ny'='THORNY'

(Other definitions for thorny that I've seen before include "Problematic (question)" , "Spiky (of bush or problem)" , "Problematic; spiny" , "Troublesome or difficult, like briars?" , "Spiny - difficult and controversial" .)

I've seen this clue in The Sunday Times and The Times.

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