The most common and most likely answer to this crossword clue is the 6 letter word RAINED
I've seen this crossword clue in The Daily Telegraph
R
A
I
N
E
D
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 RAINED mean?
RAINED verb- To have rain fall from the sky.
- To fall as or like rain.
- To issue (something) in large quantities.
- To reign.