The most common and most likely answer to this crossword clue is the 10 letter word ELIMINATED
I've seen this crossword clue in The Daily Telegraph
E
L
I
M
I
N
A
T
E
D
Buddy explains!

The straight part
We know that "put out" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case put out = eliminated.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 ELIMINATED mean?
ELIMINATED verb- To completely remove, get rid of, put an end to.
- To kill (a person or animal).
- To excrete (waste products).
- To exclude (from investigation or from further competition).
- To record amounts in a consolidation statement to remove the effects of inter-company transactions.