The most common and most likely answer to this crossword clue is the 9 letter word COMMITTED
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More clues leading to the result COMMITTED
Buddy explains!

The straight part
We know that "Carried out" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case carried out = committed.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 COMMITTED mean?
COMMITTED verb- To give in trust; to put into charge or keeping; to entrust; to consign; used with to or formerly unto.
- To put in charge of a jailer; to imprison.
- To have (a person) enter an establishment, such as a hospital or asylum, as a patient.
- To do (something bad); to perpetrate, as a crime, sin, or fault.
- To join a contest; to match; followed by with.
- To pledge or bind; to compromise, expose, or endanger by some decisive act or preliminary step. (Traditionally used only reflexively but now also without oneself etc.)
- To make a set of changes permanent.
- (Latinism) To confound.
- To commit an offence; especially, to fornicate.
- To be committed or perpetrated; to take place; to occur.
- Obligated by a pledge to some course of action.
- Showing commitment.
- Associated in an exclusive (but not necessarily permanent) sexual relationship.
- Required by logic to endorse the conclusion of an argument.