The most common and most likely answer to this crossword clue is the 11 letter word PROCEEDINGS
I've seen this crossword clue in The Times
P
R
O
C
E
E
D
I
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S
Buddy explains!
The straight part
We know that "transactions" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case transactions = proceedings.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 PROCEEDINGS mean?
PROCEEDINGS noun- The act of one who proceeds, or who prosecutes a design or transaction
- An event or happening; something that happens
- (always in plural) A published collection of papers presented at an academic conference, or representing the acts of a learned society.
- Progress or movement from one thing to another.
- A measure or step taken in a course of business; a transaction
- Any legal action, especially one that is not a lawsuit.
- The course of procedure in the prosecution of an action at law.
- The published record of the actions of a society, or of things done at its meetings.