Sanskrit rule oddly disregarded is just great (5)

I believe the answer is:

sutra

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'sanskrit rule' is the definition.
'sutra' can be an answer for 'rule' (I've seen this before). I'm not sure about the 'sanskrit' bit.

'oddly disregarded is just great' is the wordplay.
'oddly disregarded' indicates alternate letters (letters in odd-numbered positions removed).
'is'+'just'+'great'='isjustgreat'
The alternate letters of 'isjustgreat' are 'SUTRA'.

Can you help me to learn more?

(Other definitions for sutra that I've seen before include "The Kama ..... is a Sanskrit sex manual" , "sacred text" , "old rule book" , "Book of aphorisms" , "Indian rule" .)

I've seen this clue in The Independent.

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