Ignoring the odds, essay notes plant as fine (12)

I believe the answer is:

satisfactory

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'fine' is the definition.
(I've seen this before)

'ignoring the odds essay notes plant as' is the wordplay.
'ignoring the odds' indicates alternate letters (letters in odd-numbered positions are removed).
'notes' becomes 'tis' (more than one ti, a musical note).
'plant as' becomes 'factory' (I am not sure about the 'as' bit.).
The alternate letters of 'essay' are 'sa'.
'sa'+'tis'+'factory'='SATISFACTORY'

Can you help me to learn more?

(Other definitions for satisfactory that I've seen before include "fine" , "Acceptable - adequate" , "unexceptional" , "Good enough" , "Fully acceptable" .)

I've seen this clue in The Irish Times.

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