Easy shot, mixing paint (5)

I believe the answer is:

tapin

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

'mixing paint' is the wordplay.
'mixing' is an anagram indicator.
'paint' is an anagram of 'TAPIN'.

Can you help me to learn more?

(Another definition for tapin that I've seen is " Easy goal".)

I've seen this clue in The Daily Express.

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