Vanessa for one tomb in Moscow (8)

I believe the answer is:

redgrave

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'moscow' is the definition.
Both the answer and definition are singular nouns.
Perhaps you can see an association between them that I don't see?

'vanessa for one tomb' is the wordplay.
'vanessa for' becomes 'red' (I can't justify this - if you can you should give a lot more credence to this answer).
'one tomb' becomes 'grave' (synonyms).
'red'+'grave'='REDGRAVE'

'in' acts as a link.

Can you help me to learn more?

(Another definition for redgrave that I've seen is " actor".)

I've seen this clue in the Sydney Morning Herald.

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