The most common and most likely answer to this crossword clue is the 6 letter word FLORAL
I've seen this crossword clue in The Daily Telegraph
F
L
O
R
A
L
More clues leading to the result FLORAL
- Like colourful festival, free for all
- Blooming disheartening final test
- Flowery and fluid in speech
- Cry of surprise in autumn abroad, losing last of blossoms
- Fellow trainee takes type of test associated with climbers, say
- Free-for-all sort of arrangement
- Test on fluid sort of arrangement
- Blooming female learner seen before test
- Sort of arrangement that’s free for all
- Peer endlessly into Cornish river with pretty plants?
Buddy explains!

The straight part
We know that "sort of arrangement" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case sort of arrangement = floral.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 FLORAL mean?
FLORAL noun- A design involving flowers
- A perfume redolent of flowers
- Of, pertaining to, or connected with flowers.
- Portraying flowers, especially in a stylized way.