Corrects, in your hearing, to "Is the author" (6)
I believe the answer is:
writes
'corrects' is the definition.
The answer and definition can be both to do with communicating as well as being verbs in their -s form.
Perhaps there's a link between them I don't understand?
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for writes that I've seen before include "Drops a line" , "Puts words on paper" , "Communicates by letter" , "Creates (a book)" , "Pens" .)