Last auction for pinto arranged without making a dollar (9)

I believe the answer is:

nonprofit

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'without making a dollar' is the definition.
I can't judge whether this definition defines the answer.

'last auction for pinto arranged' is the wordplay.
'last' suggests the final letters.
'arranged' is an anagram indicator.
The final letter of 'auction' is 'n'.
'for'+'pinto'='forpinto'
'forpinto' is an anagram of 'onprofit'.
'n'+'onprofit'='NONPROFIT'

Can you help me to learn more?

(Another definition for nonprofit that I've seen is " Nothing to gain by it!".)

I've seen this clue in the Sydney Morning Herald.

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