Crossword Genius

Hearing unit of scoring in cricket test (5,3)

Ross

I believe the answer is:

trial run

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'cricket test' is the definition.
'trial run' can be an answer for 'test' (I have seen 'Introductory test' mean 'trial run' so perhaps 'test' could also mean 'trial run'). I am not certain of the 'cricket' bit.

'hearing unit of scoring' is the wordplay.
'hearing' becomes 'trial' (I've seen this before).
'unit' becomes 'r' (R is an example).
'of scoring' becomes 'un' (I am not sure about this - if you are sure you should believe this answer much more).
'trial'+'r'+'un'='TRIAL RUN'

'in' is the link.

Can you help me to learn more?

(Other definitions for trial run that I've seen before include "Turn rail around in practical test" , "Test mission" , "Preliminary evaluation like test trot" , "test-drive" , "A test for a car" .)

I've seen this clue in The Telegraph.
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