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Vital fellows anxious to conceal my backwardness

Ross

I think it could be either:

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3,3

6*

key men

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'anxious to conceal my backwardness' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'vital fellows' is the wordplay.
'vital' becomes 'key' (I've seen this before).
'fellows' becomes 'men' (fellow can mean a man).
'key'+'men'='KEY MEN'

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I've seen this clue in the Evening Standard.
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