The most common and most likely answer to this crossword clue is the 7 letter word ARCHIVE
I've seen this crossword clue in The Times
A
R
C
H
I
V
E
More clues leading to the result ARCHIVE
- Contents of farm vegetable store
- Structure I have to store away
- Record store, busy place on Circle Line
- Car diverted to where workers go to find a record collection
- Records are cut with knife
- Leading setter’s collected works
- Sussex heir holds five records
- Foolishly crave owning most of his record collection
- Knowing the writer’s back catalogue?
- Expert writer’s record collection
Buddy explains!

The straight part
We know that "Record store" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case record store = archive.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 ARCHIVE mean?
ARCHIVE noun- A place for storing earlier, and often historical, material. An archive usually contains documents (letters, records, newspapers, etc.) or other types of media kept for historical interest.
- The material so kept, considered as a whole (compare archives).
- Natural deposits of material, regarded as a record of environmental changes over time.
- To put into an archive.