Pick and pack and wrap up loose end (5)

I believe the answer is:

cream

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'pick' is the definition.
(I know that pick can be written as cream)

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for cream that I've seen before include "Elite; pale yellow" , "Best - substitute for shaving soap" , "An off-white shade" , "Beat" , "best people" .)

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

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