Makes new arrangement of recording in store displays? (7)

I believe the answer is:

repacks

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'makes new arrangement' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'recording in store displays?' is the wordplay.
'recording' becomes 'EP' (short for Extended Play, type of record).
'in' indicates putting letters inside.
'store displays?' becomes 'racks' (I can't justify this - if you can you should believe this answer much more).
'ep' placed inside 'racks' is 'REPACKS'.

'of' acts as a link.

Can you help me to learn more?

(Another definition for repacks that I've seen is " Once more fills".)

I've seen this clue in The Independent.

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