Writing newspaper, maybe wound player (4,5)

I believe the answer is:

hand organ

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'wound player' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.

'writing newspaper' is the wordplay.
'writing' becomes 'hand' ('hand' can refer to someone's handwriting).
'newspaper' becomes 'organ' (organ can refer to a newspaper or journal).
'hand'+'organ'='HAND-ORGAN'

'maybe' is the link.

Can you help me to learn more?

I've seen this clue in The Independent.

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