I'm backing Auntie arranging the finer points (8)

I believe the answer is:

minutiae

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'the finer points' is the definition.
'minutiae' can be an answer for 'points' (minutia is a kind of point). I'm unsure of the 'the finer' bit.

'i'm backing auntie arranging' is the wordplay.
'backing' shows that the letters should be reversed in order.
'arranging' indicates an anagram.
'im' written backwards gives 'mi'.
'auntie' with letters rearranged gives 'nutiae'.
'mi'+'nutiae'='MINUTIAE'

Can you help me to learn more?

(Other definitions for minutiae that I've seen before include "trifles" , "Tiny or trivial details" , "Precise details" , "Detailed particulars" , "Trivia, very small details" .)

I've seen this clue in the Irish Times.

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