In some clues, consecutive three letters have to be removed before solving.
I have about 5 clues remaining to solve but only 24 trios, instead of 36.
I can make a 9 letter name starting with A for author.
I will start with these two.
23d. They deliver suspect to attend spies (7)
30d Bosses possessing amber gems bearing figures (6)
Thank you NAC and ProfessorM.
Once I figured out the name in author's native language, it was easy.
The substitutions were in a pattern so did not have to look hard.