Odd pie chart at end of cursory study of inscriptions (9)

I believe the answer is:

epigraphy

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'study of inscriptions' is the definition.
'epigraphy' can be an answer for 'study' (epigraphy is a kind of study). I'm not certain of the 'of inscriptions' bit.

'odd pie chart at end of cursory' is the wordplay.
'odd' indicates anagramming the letters.
'chart' becomes 'graph' (I've seen this before).
'at end of' indicates one should take the final letters.
The last letter of 'cursory' is 'y'.
'pie' anagrammed gives 'epi'.
'epi'+'graph'+'y'='EPIGRAPHY'

Can you help me to learn more?

(Another definition for epigraphy that I've seen is " written in stone".)

I've seen this clue in The Times.

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