Author shows wild rage about poor acting (7)
I believe the answer is:
grahame
'author' is the definition.
(I've seen this before)
'wild rage about poor acting' is the wordplay.
'wild' indicates an anagram.
'about' means one lot of letters goes inside another.
'poor acting' becomes 'ham' (I can't justify this - if you can you should believe this answer much more).
'rage' anagrammed gives 'grae'.
'grae' placed around 'ham' is 'GRAHAME'.
'shows' acts as a link.
Can you help me to learn more?
(Other definitions for grahame that I've seen before include "Kenneth - - , Scottish author" , "See 3" , "Kenneth - - (deviser of Mr Toad)" , "Kenneth --, The Wind in the Willows author" , "novelist" .)