The most common and most likely answer to this crossword clue is the 7 letter word DEBUNKS
I've seen this crossword clue in The Guardian
D
E
B
U
N
K
S
Buddy explains!

The straight part
We know that "Gets out of bed/makes off" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case gets out of bed/makes off = debunks.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 DEBUNKS mean?
DEBUNKS verb- To discredit, or expose to ridicule the falsehood or the exaggerated claims of something.