Each play must have correct car noise in plot (8)
I believe the answer is:
scenario
'plot' is the definition.
(I've seen this before)
'each play must have correct car noise' is the wordplay.
'car noise' can be anagrammed to 'SCENARIO'.
But, I'm not clear how the anagram is indicated.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for scenario that I've seen before include "Film script outline" , "Event postulation" , "Outline or synopsis of a play" , "Dramatic set-up" , "Suggested plan of action" .)