Wrong or right, third person's invested in euros, oddly (9)

I believe the answer is:

erroneous

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'wrong' is the definition.
(I know that wrong can be written as erroneous)

'right third person's invested in euros oddly' is the wordplay.
'right' becomes 'r' (common abbreviation).
'third person' becomes 'one' (I've seen this in other clues. I am not sure about the 'third' bit.).
'invested in' indicates putting letters inside.
'oddly' indicates anagramming the letters.
'r'+'one'='rone'
'euros' with letters rearranged gives 'erous'.
'rone' going within 'erous' is 'ERRONEOUS'.

'or' acts as a link.

Can you help me to learn more?

(Other definitions for erroneous that I've seen before include "with mistakes" , "Incorrect, wrong" , "Mistaken - inaccurate" , "not right" , "Mistaken, in error" .)

I've seen this clue in The Guardian.

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