Record only small tunes again (9)

I believe the answer is:

readjusts

'tunes again' is the definition.

'record only small' is the wordplay.
'record' becomes 'read' ('read' can be a synonym of 'record'**).
'only' becomes 'just' ('just' can be a synonym of 'only').
'small' becomes 's' (abbreviation - e.g. clothes size).
'read'+'just'+'s'='READJUSTS'

(Another definition for readjusts that I've seen is " Settles again".)

I've seen this clue in The Times.

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