Test procedure introduced by industrialists (5)

I believe the answer is:

trial

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'test procedure' is the definition.
'trial' can be an answer for 'test' (I've seen this before). I am not sure about the 'procedure' bit.

'introduced by industrialists' is the wordplay.
'introduced by' says the answer is hidden in the clue.
'TRIAL' is hidden in the letters of 'industrialists'.

Can you help me to learn more?

(Other definitions for trial that I've seen before include "French actor who sings" , "Legal proceedings or a test run" , "Ordeal, perhaps in court" , "Judicial examination" , "Testing, experiment" .)

I've seen this clue in The Times.

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