Frequently ignored, yells "I'm the best!" (5)

I believe the answer is:

elite

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

I don't understand the remainder of the clue.

(Other definitions for elite that I've seen before include "Pick of the bunch" , "one of the letter sizes" , "Selected as the best" , "Superior group in society" , "First-class" .)

I've seen this clue in The Independent.

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