The most common and most likely answer to this crossword clue is the 10 letter word CONTINUING
I've seen this crossword clue in The Daily Telegraph
C
O
N
T
I
N
U
I
N
G
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 CONTINUING mean?
CONTINUING verb- To proceed with (doing an activity); to prolong (an activity).
- To make last; to prolong.
- To retain (someone or something) in a given state, position, etc.
- To remain in a given place or condition; to remain in connection with; to abide; to stay.
- To resume.
- To adjourn, prorogue, put off.
- To make a continuation bet.
- A continuation.