Report admitted after endless nonsense (8)
I believe the answer is:
bulletin
'report' is the definition.
(I know that bulletin is a type of report)
'admitted after endless nonsense' is the wordplay.
'admitted' becomes 'in' (eg someone might be admitted into a group).
'after' means one lot of letters go next to another.
'endless nonsense' becomes 'bullet' (I can't justify this - if you can you should believe this answer much more).
'in' after 'bullet' is 'BULLETIN'.
Can you help me to learn more?
(Other definitions for bulletin that I've seen before include "News report" , "Report for publication or broadcast" , "Newsflash" , "Regular report" , "Short and regular up-date" .)