The most common and most likely answer to this crossword clue is the 9 letter word RERELEASE
I've seen this crossword clue in Financial Times
R
E
R
E
L
E
A
S
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More clues leading to the result RERELEASE
Buddy explains!
The straight part
We know that "How to make more from a single recording?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case how to make more from a single recording? = rerelease.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 RERELEASE mean?
RERELEASE noun- A rereleased item.
- To release (a film, video game, etc.) again.