The most common and most likely answer to this crossword clue is the 6 letter word ARRAYS
I've seen this crossword clue in The Guardian
A
R
R
A
Y
S
Buddy explains!
The straight part
We know that "arrangements" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case arrangements = arrays.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 ARRAYS mean?
ARRAYS noun- Clothing and ornamentation.
- A collection laid out to be viewed in full.
- An orderly series, arrangement or sequence.
- Order; a regular and imposing arrangement; disposition in regular lines; hence, order of battle.
- A large collection.
- Common name for matrix.
- Any of various data structures designed to hold multiple elements of the same type; especially, a data structure that holds these elements in adjacent memory locations so that they may be retrieved using numeric indices.
- A ranking or setting forth in order, by the proper officer, of a jury as impanelled in a cause; the panel itself; or the whole body of jurors summoned to attend the court.
- A militia.
- A group of hedgehogs.
- A microarray.
- To clothe and ornament; to adorn or attire.
- To lay out in an orderly arrangement; to deploy or marshal.
- To set in order, as a jury, for the trial of a cause; that is, to call them one at a time.