The most common and most likely answer to this crossword clue is the 4 plus 3 plus 11 letter word ROOM FOR IMPROVEMENT
I've seen this crossword clue in The Guardian
R
O
O
M
F
O
R
I
M
P
R
O
V
E
M
E
N
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.