The most common and most likely answer to this crossword clue is the 7 letter word ARSENAL
I've seen this crossword clue in The Times
A
R
S
E
N
A
L
More clues leading to the result ARSENAL
- West-bound roads close to diner and a Shell store?
- Stadium beside lake accommodates second team
- Club in weapons collection
- Magazine containing toxic stuff has one chapter deleted
- Country roads run up underneath a weapons store
- Stadium housing second Lima football team
- Football team behind City with northern back
- Stadium beside lake hosts second team
- Ring line to receive small magazine
- A royal stamp of approval protecting source in Newsweek magazine
Buddy explains!

The straight part
We know that "Magazine" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case magazine = arsenal.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 ARSENAL mean?
ARSENAL noun- A military establishment for the storing, development, manufacturing, testing, or repairing of arms, ammunition, and other war materiel; an armoury.
- A stock of weapons, especially all the weapons that a nation possesses.
- A store or supply of anything.
- Any supply of aid collected to prepare a person or army for hardship