It may make grandee enraged, for example (7)
I believe the answer is:
anagram
This clue might be a double definition.
'it may make grandee enraged' is the first definition.
The definition suggests a singular noun which matches the answer.
'example' is the second definition.
The answer and definition can be both related to communication as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
'for' is the link.
Can you help me to learn more?
(Other definitions for anagram that I've seen before include "There's confusion among characters" , "For racing tipster, starting price, for example" , "Mix-up" , "Argue the point" , "Word arranged from the letters of another" .)