The most common and most likely answer to this crossword clue is the 10 letter word DISORDERLY
I've seen this crossword clue in The Guardian
D
I
S
O
R
D
E
R
L
Y
More clues leading to the result DISORDERLY
- Criticise the German in airport making a mess
- Show no respect to soldier in a mess
- Untidy soldier with dry bananas
- Irregular soldier shot crossing road near the centre of Okayama
- Treat with contempt hospital attendant that’s unruly
- Democrat, terribly sorry, idle and undisciplined
- Dry red soil scattered all over the place
- Dry soldier disturbed drunk partner?
- Batman appears after detective’s confused
- Chaotic detective’s military assistant
Buddy explains!

The straight part
We know that "unruly" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case unruly = disorderly.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 DISORDERLY mean?
DISORDERLY noun- A person who acts in a disorderly manner.
- Not in order; marked by disorder or disarray.
- Not acting in an orderly way, as the functions of the body or mind.
- Not complying with the restraints of order and law; unruly; lawless.
- Offensive to good morals and public decency.
- In a confused or lawless manner.