The most common and most likely answer to this crossword clue is the 9 letter word UNCHAINED
I've seen this crossword clue in The Times
U
N
C
H
A
I
N
E
D
Buddy explains!

The straight part
We know that "out of bonds" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case out of bonds = unchained.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.
Crossword Answer definitions
UNCHAINED verb- To remove chains from; to free; to liberate.
- Free from chains or fetters; unencumbered.