The most common and most likely answer to this crossword clue is the 11 letter word COINCIDENCE
I've seen this crossword clue in The Daily Telegraph
C
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C
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More clues leading to the result COINCIDENCE
Buddy explains!
The straight part
We know that "Correspondence" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case correspondence = coincidence.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 COINCIDENCE mean?
COINCIDENCE noun- Of objects, the property of being coincident; occurring at the same time or place.
- Of events, the appearance of a meaningful connection when there is none.
- A coincidence point.
- A fixed point of a correspondence; a point of a variety corresponding to itself under a correspondence.