The most common and most likely answer to this crossword clue is the 9 plus 1 letter word SCABBARD –
I've seen this crossword clue in The Sunday Telegraph
S
C
A
B
B
A
R
D
Â
â
€
“
Buddy explains!

The straight part
We know that "Put weapon away here" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case put weapon away here = scabbard –.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 SCABBARD – mean?
SCABBARD – noun- The sheath of a sword.
- To put an object (especially a sword) into its scabbard.