The most common and most likely answer to this crossword clue is the 10 letter word DISPATCHES
I've seen this crossword clue in Financial Times
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More clues leading to the result DISPATCHES
Buddy explains!
The straight part
We know that "communications" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case communications = dispatches.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 DISPATCHES mean?
DISPATCHES noun- A message sent quickly, as a shipment, a prompt settlement of a business, or an important official message sent by a diplomat, or military officer.
- The act of doing something quickly.
- A mission by an emergency response service, typically attend to an emergency in the field.
- The passing on of a message for further processing, especially via a dispatch table.
- A dismissal.
- To send (a shipment) with promptness.
- To send (a person) away hastily.
- To send (an important official message) promptly, by means of a diplomat or military officer.
- To send (a journalist) to a place in order to report.
- To dispose of speedily, as business; to execute quickly; to make a speedy end of; to finish; to perform.
- To rid; to free.
- To destroy quickly and efficiently.
- To pass on for further processing, especially via a dispatch table (often with to).
- To hurry.
- To deprive.