Date encapsulating cold charm (7)

I believe the answer is:

bewitch

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'charm' is the definition.
(I know that charm can be written as bewitch)

I can't explain the remainder of the clue.

(Other definitions for bewitch that I've seen before include "Put under a spell, or delight" , "intrigue" , "Cast a spell upon" , "Entrance" , "add glamour" .)

I've seen this clue in The Guardian.

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