Crossword Genius

Girl in grand novel by Jane Austen (5)

Ross

I believe the answer is:

gemma

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

'girl' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.

'grand novel by jane austen' is the wordplay.
'grand' becomes 'g' (G is short for grand as in a thousand).
'novel by jane austen' becomes 'emma' (I've seen this in another clue).
'g'+'emma'='GEMMA'

'in' acts as a link.

Can you help me to learn more?

(Other definitions for gemma that I've seen before include "Girl's name" , "Bud" , "girl" .)

I've seen this clue in The Sun.
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