The most common and most likely answer to this crossword clue is the 15 letter word SELF-MANAGEMENT
I've seen this crossword clue in Financial Times
S
E
L
F
-
M
A
N
A
G
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.
What does SELF-MANAGEMENT mean?
SELF-MANAGEMENT noun- A form of management encompassing self-directed work processes by an organization's workforce with or without joint control by workers and management.