The most common and most likely answer to this crossword clue is the 7 letter word HOLSTER
H
O
L
S
T
E
R
More clues leading to the result HOLSTER
- Army extremely eager to secure large place for gun
- Her slot designed as gun holder
- What helps one pack with vacations going over half of winter
- Belt for tools, stupidly lost, grabbed by that lady
- Pistol-case they regularly require at first after vacation
- Composer upset about pistol case
- Where one might find piece about revolutionary by British composer
- Composer about to take up case of Western gunslinger
- Colt might be secured by this composer, on reflection
- Composer with some hesitation put away gun
Buddy explains!

The straight part
We know that "Case" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case case = holster.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 HOLSTER mean?
HOLSTER noun- A case for carrying a tool, particularly a gun, safely and accessibly.
- A belt with loops or slots for carrying small tools or other equipment.
- To put something in a holster.