Press standard imposed by autocrat.. (4,4)

I believe the answer is:

iron rule

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'imposed by autocrat' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'press standard' is the wordplay.
'press' becomes 'iron' (ironing is a kind of pressing).
'standard' becomes 'rule' (synonyms).
'iron'+'rule'='IRON RULE'

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I've seen this clue in The Irish Times.

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