The most common and most likely answer to this crossword clue is the 8 letter word NARRATED
I've seen this crossword clue in Financial Times
N
A
R
R
A
T
E
D
Buddy explains!

The straight part
We know that "related events" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case related events = narrated.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 NARRATED mean?
NARRATED verb- To relate (a story or series of events) in speech or writing.
- To give an account.