Freezes and preserves to this day (5,5)

I believe the answer is:

keeps still

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

'preserves to this day' is the wordplay.
'preserves' becomes 'keeps' ('keep' can be a synonym of 'preserve').
'to this day' becomes 'still' (I've seen this in another clue).
'keeps'+'still'='KEEPS STILL'

'and' is the link.

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