Flower that may be potted? (4)

I believe the answer is:

pink

I believe this clue is a double definition.

'flower' is the first definition.
(pink is a kind of flower)

'that may be potted?' is the second definition.
(pink balls are potted in snooker)

(Other definitions for pink that I've seen before include "Salmon-coloured" , "Left-wing" , "stab" , "Pale red" , "Put serrated edge on" .)

I've seen this clue in The Independent.

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