Very tiny boat, music playing (9)

I believe the answer is:

subatomic

'very tiny' is the definition.

'boat music playing' is the wordplay.
'playing' is an anagram indicator.
'boat'+'music'='boatmusic'
'boatmusic' anagrammed gives 'SUBATOMIC'.

(Other definitions for subatomic that I've seen before include "Of smaller than elementary particles" , "Like 9 across" , "Smaller than a basic particle of matter" .)

I've seen this clue in The Times.

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