The most common and most likely answer to this crossword clue is the 5 plus 9 letter word POWER BREAKFAST
I've seen this crossword clue in The Times
P
O
W
E
R
B
R
E
A
K
F
A
S
T
More clues leading to the result POWER BREAKFAST
- Rasher to enter this high-level discussion?
- This sort of business meeting might end quickly
- Early meeting might go to pieces quickly
- Round-table discussions in morning might collapse quickly
- Where to do early business with e.g. electricity cut quickly
- Early work might involve meeting with fellow in steak bar, possibly
Buddy explains!
The straight part
We know that "this high-level discussion?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case this high-level discussion? = power breakfast.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.