Judges drunk by about 1:50 in Reading (9)
I believe the answer is:
rehearsal
'reading' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Maybe you can see a link between them that I don't see?
'judges drunk by about 150' is the wordplay.
'judges' becomes 'hears' (as in to hear a court case).
'drunk by' means one lot of letters goes inside another.
'about' says the letters should be written backwards.
'l50' becomes 'laer' (I am not sure about this - if you are sure you should believe this answer much more).
'laer' back-to-front is 'real'.
'hears' going inside 'real' is 'REHEARSAL'.
'in' is the link.
Can you help me to learn more?
(Other definitions for rehearsal that I've seen before include "Dummy run" , "Practice session in preparation for public performance" , "show trial" , "Drill" , "Practice - run-through" .)