Crossword Genius

Greta, bin emptier? (5)

Ross

I believe the answer is:

garbo

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'greta' is the definition.
(Greta Garbo)

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for garbo that I've seen before include "Famous film actress" , "Swedish actress born Greta Gustafsson" , "She sought solitude" , "Old film actress" , "Greta . . . . ., film star who wanted to be alone" .)

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