Leading lady disseminating OC trivia (8)

I believe the answer is:

victoria

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'leading lady' is the definition.
'Victoria' can be an answer for 'lady'. I'm not certain of the 'leading' bit.

'disseminating oc trivia' is the wordplay.
'disseminating' indicates an anagram (disseminate can mean to spread around).
'oc'+'trivia'='octrivia'
'octrivia' with letters rearranged gives 'VICTORIA'.

Can you help me to learn more?

(Other definitions for victoria that I've seen before include "Queen, Australian state and plum" , "It's the end of the line" , "Queen and Falls" , "Monarch" , "British queen" .)

I've seen this clue in The Independent.

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