Biblical books exist to back lyric inspiration (5)

I believe the answer is:

erato

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

'lyric inspiration' is the definition.
'Erato' can be an answer for 'inspiration' (one of the muses in Greek mythology). I'm not sure about the 'lyric' bit.

'biblical books exist to back' is the wordplay.
'biblical books' becomes 'OT' (Old Testament).
'exist' becomes 'are' ('they exist' means 'they are').
'to back' shows that the letters should be reversed in order.
'ot'+'are'='otare'
'otare' back-to-front is 'ERATO'.

Can you help me to learn more?

(Other definitions for erato that I've seen before include "poetical inspiration" , "Muse of lyric love-poetry" , "daughter of Zeus" , "inspiration for poetry" , "Source of poetic inspiration" .)

I've seen this clue in The Independent.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.