Best one of those scoring one in Scrabble turns? (5)

I believe the answer is:

elite

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'best' is the definition.
(elite can mean the very best of a group)

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for elite that I've seen before include "Group considered to have superior status" , "Aristocracy" , "one of the letter sizes" , "Creme de la creme" , "twelve pitch in the office" .)

I've seen this clue in The Times.

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