The most common and most likely answer to this crossword clue is the 10 letter word REPOSITORY
R
E
P
O
S
I
T
O
R
Y
More clues leading to the result REPOSITORY
- Sorry poet, I worked in a dump?
- Bank agent meets huge politician, one to be entertained
- Sorry poet, I suspect, in store
- Agent with old anecdote about one in vault
- Treasury theatre put on old romance with current investment
- Salesman with ordinary tale about independent store
- Espy trio slyly stealing gold in vault
- Fresh poser facing current right- winger in Treasury
Buddy explains!

The straight part
We know that "store" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case store = repository.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 REPOSITORY mean?
REPOSITORY noun- A location for storage, often for safety or preservation.