The most common and most likely answer to this crossword clue is the 7 letter word UNYOKED
I've seen this crossword clue in Independent
U
N
Y
O
K
E
D
Buddy explains!

The straight part
We know that "Liberated" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case liberated = unyoked.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 UNYOKED mean?
UNYOKED verb- To release something from a yoke or harness.
- To disconnect, unlink.
- To liberate, deliver from oppression.
- To unyoke an animal.
- To cease from labour.
- Not yoked.