Crossword Genius

One gathering leaves for libertine (4)

Ross

I believe the answer is:

rake

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'for libertine' is the definition.
(rake is a kind of libertine)

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for rake that I've seen before include "Smooth - Lothario" , "set at an angle" , "Gardening tool for the dissolute fellow" , "disreputable fellow" , "Debauched person found in the garden" .)

I've seen this clue in The Sun.
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