Complex machinery caught nation's port out (12)

I believe the answer is:

contraptions

'complex machinery' is the definition.
(contraptions are complicated machines)

'caught nation's port out' is the wordplay.
'caught' becomes 'c' (cricket abbreviation).
'out' indicates an anagram (out can mean wrong or inaccurate).
'nations'+'port'='nationsport'
'nationsport' with letters rearranged gives 'ontraptions'.
'c'+'ontraptions'='CONTRAPTIONS'

I've seen this clue in The Guardian.

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