Poke at book's lacy frill (5)

I believe the answer is:

jabot

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'lacy frill' is the definition.
'jabot' can be an answer for 'frill' (jabot is a kind of frill). I am not certain of the 'lacy' bit.

'poke at book's' is the wordplay.
'poke' becomes 'jab' (synonyms).
'at' means one lot of letters go next to another.
'book' becomes 'ot' (Old Testament).
'jab'+'ot'='JABOT'

Can you help me to learn more?

(Other definitions for jabot that I've seen before include "Lace frill" , "bit of Highland dress" , "Ruffle over shirt-front" .)

I've seen this clue in the Sydney Morning Herald.

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