One of Santa's reindeer moves well (6)

I believe the answer is:

dancer

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'one of santa's reindeer' is the definition.
(name of one of Santa Claus reindeer)

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for dancer that I've seen before include "One in the same team as, say, Rudolf" , "Eg, ballerina" , "Entertainer" , "Fred Astaire, say" , "Craned (anag.)" .)

I've seen this clue in The Irish Times.

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