Fancy a malt? Test old whiskey with new label (5,6)

I believe the answer is:

tamla motown

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'label' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.

'fancy a malt? test old whiskey with new' is the wordplay.
'fancy' is an anagram indicator.
'test' becomes 'mot'.
'old whiskey' becomes 'ow' (this might be a standard abbreviation I've not previously seen).
'with' means one lot of letters go next to another.
'new' becomes 'n'.
'a'+'malt'='amalt'
'amalt' with letters rearranged gives 'tamla'.
'tamla'+'mot'+'ow'+'n'='TAMLA MOTOWN'

Can you help me to learn more?

(Another definition for tamla motown that I've seen is " [RECORD LABEL]".)

I've seen this clue in The Independent.

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