Drill to assist one attempting to strike gold? (6,8)

I believe the answer is:

target practice

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'drill' is the definition.
(I know that target practice is a type of drill)

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for target practice that I've seen before include "Working on aim" , "Learner's shooting session" , "aiming to improve with this?" .)

I've seen this clue in The Independent.

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