Morsels of choc-ices are very nice (6)

I believe the answer is:

choice

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'nice' is the definition.
Both the answer and definition are adjectives. Perhaps there's an association between them I don't understand?

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for choice that I've seen before include "Very good" , "Act or power of selecting" , "Select" , "Top quality" , "'Option, alternative (6)'" .)

I've seen this clue in the Evening Standard.

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