The most common and most likely answer to this crossword clue is the 5 plus 3 plus 6 letter word HENRY THE FOURTH
I've seen this crossword clue in The Sunday Telegraph
H
E
N
R
Y
T
H
E
F
O
U
R
T
H
More clues leading to the result HENRY THE FOURTH
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.