The most common and most likely answer to this crossword clue is the 7 letter word UNKEMPT
I've seen this crossword clue in The Times
U
N
K
E
M
P
T
More clues leading to the result UNKEMPT
- Dishevelled drunk emptying pockets
- Messy bed vacated, case dismissed
- Shrunk, emptied — essentially neglected
- Messy bed, bachelor absent, unoccupied mostly
- Blue Berets stayed guarding male in a mess
- Like promise broken, broken by male like Boris
- Shabby trunk emptied contents
- Untidy punk met
- Slobbish house member involved in topless spree
- Rough on the seabed, holding nothing, containers missing
Buddy explains!

The straight part
We know that "Dishevelled" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case dishevelled = unkempt.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 UNKEMPT mean?
UNKEMPT adjective- (of hair) Uncombed; dishevelled.
- (by extension) Disorderly; untidy; messy; not kept up.
- Rough; unpolished