Crossword Genius

Good name for a horsewoman? (8)

Ross

I believe the answer is:

arabella

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

'good name' is the definition.
'Arabella' can be an answer for 'name'. I'm unsure of the 'good' bit.

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for arabella that I've seen before include "Richard Strauss opera" , "Girl" .)

I've seen this clue in the Evening Standard.
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