The most common and most likely answer to this crossword clue is the 7 plus 1 plus 7 letter word DOTTREL > DELORTT
I've seen this crossword clue in The Guardian
D
O
T
T
R
E
L
>
D
E
L
O
R
T
T
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.