Old toy, among other things, contains boat (4,1,6)

I believe the answer is:

etch a sketch

'old toy' is the definition.

'among other things contains boat' is the wordplay.
'among other things' becomes 'etc'.
'contains' becomes 'has' (I've seen this before).
'boat' becomes 'ketch' (ketch is a kind of sailing vessel).
'etc'+'has'+'ketch'='ETCH A SKETCH'

I've seen this clue in The Independent.

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