Crossword Genius

Book whose author shows off (5)

Ross

I believe the answer is:

hosea

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'book' is the definition.
(book of the Hebrew Bible)

'whose author shows off' is the wordplay.
'HOSEA' is hidden within the letters.
But, I'm unsure how this is indicated.

Can you help me to learn more?

(Other definitions for hosea that I've seen before include "Book of the Old Testament - a shoe (anag)" , "Good book" , "OT prophet" , "Minor prophet and book of the Old Testament" , "Book of prophecies" .)

I've seen this clue in The Times.
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