The most common and most likely answer to this crossword clue is the 9 plus 6 letter word CROSSWORD PUZZLE
I've seen this crossword clue in The Daily Telegraph
C
R
O
S
S
W
O
R
D
P
U
Z
Z
L
E
More clues leading to the result CROSSWORD PUZZLE
- This producer's slow, laboriously enlisting a pair of unknowns
- Angry talk to confuse what you’re doing?
- This indignant line-up, with first of dissenters on floor
- Go over promise on mystery that you’re trying to solve
- This promise kept by irascible fox
- This load should be placed on floor after finishing work early at the beginning of day
- This angry exchange standing on floor
- Christian symbol on floor, oath inscribed — this
- d This poser is after snappy conversationA poser followsa harsh conversation. You are doing this NOW! or at least checking on how your solve went.
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.