Planted, is plant okay? (12)

I believe the answer is:

satisfactory

'okay?' is the definition.
(similar in meaning)

'planted is plant' is the wordplay.
'planted' becomes 'sat' (planted can mean sat in a particular place).
'plant' becomes 'factory'.
'sat'+'is'+'factory'='SATISFACTORY'

(Other definitions for satisfactory that I've seen before include "Up to scratch" , "fine" , "Good enough" , "Meeting expectations" , "unexceptional" .)

I've seen this clue in The Telegraph.

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