Eye-rhyme for Christmas favourite (5,3)

I believe the answer is:

mince pie

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'eye' is the definition.
(I've seen this before)

I can't explain the remainder of the clue.

(Other definitions for mince pie that I've seen before include "Christmas fare" , "seasonal fare - with 25d" , "Christmas pastry" , "Christmas food item" , "Christmas delicacy" .)

I've seen this clue in The Guardian.

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