Book written in African state, primarily on Shakespearean steward (8)

I believe the answer is:

malvolio

I'm a little stuck... Click here to teach me more about this clue!

But I can't explain it at all! Could you help me understand?

(Other definitions for malvolio that I've seen before include "comedy role" , "Character in Shakespeare" , "Olivia's steward (Twelfth Night)" , "Theatrical character" .)

I've seen this clue in The Times.

Want a hint initially instead of a full solution? Install my app