Prepares the stuffed pancakes when one arrives? (5,2)

I believe the answer is:
rolls up
'one arrives?' is the definition.
(I've seen this before)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for rolls up that I've seen before include "Appears" , "Arrives" .)
I've seen this clue in the Evening Standard.
Want a hint initially instead of a full solution?
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