Perhaps Russian editor worked hard (6)

I believe the answer is:

slaved

I'm a little stuck... Click here to teach me more about this clue!

'worked hard' is the definition.

'perhaps russian editor' is the wordplay.
I cannot really see how this works, but
'editor' could be 'ed' and 'ed' is found within the answer.
The remaining letters 'slav' is a valid word which might be clued in a way I don't understand.
This may be the basis of clue (or it may be nonsense).

Can you help me to learn more?

I've seen this clue in The Guardian.

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