Rushing into room, a king has terrified occupants (6,5)

I believe the answer is:

making haste

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'rushing' is the definition.
I don't know anything about this answer so I can't judge whether this works.

'into room a king has terrified occupants' is the wordplay.
'into' indicates the answer is hidden within the clue.
'MAKING HASTE' can be found hidden inside 'room a king has terrified occupants'.

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I've seen this clue in the Sydney Morning Herald.

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