The most common and most likely answer to this crossword clue is the 11 letter word COMMENTATOR
I've seen this crossword clue in Financial Times
C
O
M
M
E
N
T
A
T
O
R
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 COMMENTATOR mean?
COMMENTATOR noun- A person who comments; especially someone who is paid to give his/her opinions in the media about current affairs, sports, etc.