The most common and most likely answer to this crossword clue is the 13 letter word COMMUNICATION
I've seen this crossword clue in Independent
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Buddy explains!
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 COMMUNICATION mean?
COMMUNICATION noun- The act or fact of communicating anything; transmission.
- The concept or state of exchanging data or information between entities.
- A message; the essential data transferred in an act of communication.
- The body of all data transferred to one or both parties during an act of communication.
- An instance of information transfer; a conversation or discourse.
- A passageway or opening between two locations; connection.
- A connection between two tissues, organs, or cavities.
- Association; company.
- Participation in Holy Communion.
- A trope by which a speaker assumes that his hearer is a partner in his sentiments, and says "we" instead of "I" or "you".