Russian name for a whole-hearted member (4)

I believe the answer is:

oleg

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'member' is the definition.
I don't know anything about this answer so I cannot tell whether this works.

'russian name for a whole-hearted' is the wordplay.
'russian name' becomes 'leg' (I can't justify this - if you can you should believe this answer much more).
'for' is a charade indicator (letters next to each other) (I've seen this in other clues).
'hearted' indicates the central letters.
The middle of 'whole' is 'o'.
'leg' put after 'o' is 'OLEG'.

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I've seen this clue in the Evening Standard.

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