The most common and most likely answer to this crossword clue is the 4 plus 4 letter word VERY WELL
I've seen this crossword clue in Financial Times
V
E
R
Y
W
E
L
L
More clues leading to the result VERY WELL
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.