A meeting of old friends in the Indian Ocean (7)

I believe the answer is:

reunion

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'a meeting of old friends' is the definition.
(I've seen this before)

I don't understand the rest of the clue.

(Other definitions for reunion that I've seen before include "Gathering of former associates" , "where ties can be renewed" , "Meeting; French island" , "Meeting of a past group" , "event for ex-students" .)

I've seen this clue in The Irish Independent.

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