The most common and most likely answer to this crossword clue is the 9 letter word ANNOUNCES
I've seen this crossword clue in The Daily Telegraph
A
N
N
O
U
N
C
E
S
Buddy explains!

The straight part
We know that "Reports" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case reports = announces.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 ANNOUNCES mean?
ANNOUNCES verb- To give public notice, especially for the first time; to make known
- To pronounce; to declare by judicial sentence