Group round court extremely elegant (5)

I believe the answer is:

octet

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'group' is the definition.
(group of eight musicians)

I can't explain the remainder of the clue.

(Other definitions for octet that I've seen before include "Chamber ensemble, a Mendelssohn favourite" , "Lines of verse" , "Group of eight musicians" , "Eightsome" , "A number of musicians" .)

I've seen this clue in The Sun and The Telegraph.

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