The most common and most likely answer to this crossword clue is the 9 letter word COMMENCES
I've seen this crossword clue in The Daily Telegraph
C
O
M
M
E
N
C
E
S
Buddy explains!

The straight part
We know that "Launches" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case launches = commences.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 COMMENCES mean?
COMMENCES verb- To begin, start.
- To begin to be, or to act as.
- To take a degree at a university.