The most common and most likely answer to this crossword clue is the 9 letter word UNCOUPLED
I've seen this crossword clue in The Guardian
U
N
C
O
U
P
L
E
D
Buddy explains!
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 UNCOUPLED mean?
UNCOUPLED adjective- Not coupled to something; disconnected; detached.
- To disconnect or detach one thing from another.
- To come loose.
- To loose, as dogs, from their couples.