The most common and most likely answer to this crossword clue is the 7 letter word REUNION
I've seen this crossword clue in Financial Times
R
E
U
N
I
O
N
More clues leading to the result REUNION
- Concerning one in French isle just after gathering for friends?
- Meeting of old mates concerning alliance
- French department concerned with organisation of labour
- Respecting wedding party
- Island meeting of old friends
- Old pals do get about with workers’ association
- Island gathering of the clans
- French island where ties can be renewed
- Change euro in new French region
- Engineers and workers meeting as old friends?
Buddy explains!

The straight part
We know that "Island/gathering of the clans" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case island/gathering of the clans = reunion.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does REUNION mean?
REUNION noun- The process or act of reuniting.
- A planned event at which members of a dispersed group meet together.