Patient type planting narcissi border in raised beds (5)

I believe the answer is:

stoic

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'patient' is the definition.
(stoic can mean patient or tolerating suffering)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for stoic that I've seen before include "Resilient philosopher" , "One who endures pain with equanimity" , "Philosopher like Marcus Aurelius" , "show little emotion" , "One indifferent to fortune, pleasure and pain" .)

I've seen this clue in The Guardian.

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