Crossword Genius

Tiddly brief (6)

Ross

I believe the answer is:

potted

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'tiddly brief' is the definition.
Both the answer and definition are adjectives. Maybe they are linked in a way I don't understand?

This is the entire clue.

Can you help me to learn more?

(Other definitions for potted that I've seen before include "Summarized or abridged" , "Sort of history" , "As shrimps or billiard balls may be" , "Abridged, like TD poet" , "Abridged, or planted in small container" .)

I've seen this clue in The Guardian.
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