Laughter about open mic initially upset big shot (9)
I believe the answer is:
maharajah
This clue could be a double definition.
'laughter' is the first definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'open mic initially upset big shot' is the second definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps you can see an association between them that I can't see?
'about' is the link.
Can you help me to learn more?
(Other definitions for maharajah that I've seen before include "Indian prince" , "Great Indian ruler" .)