Crossword Genius

By the sound of it, writer identifies talent in developing plots etc (5,7)

Ross

I believe the answer is:

green fingers

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'talent in developing plots etc' is the definition.
(talent for cultivating plots of land)

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for green fingers that I've seen before include "Gardening skill" , "Knack of making plants grow well" , "Person adept at growing plants" , "Horticultural knack" , "Natural gardening ability" .)

I've seen this clue in The Telegraph.
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