Crossword Genius

Fictional material kept in Tory organisation (10)

Ross

I believe the answer is:

kryptonite

'fictional material' is the definition.
(I know that kryptonite is a fictional material)

'kept in tory organisation' is the wordplay.
'organisation' is an anagram indicator.
'kept'+'in'+'tory'='keptintory'
'keptintory' anagrammed gives 'KRYPTONITE'.

(Other definitions for kryptonite that I've seen before include "threat to Kent" , "Mineral avoided by Superman" .)

I've seen this clue in The Guardian.
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