One rotten fellow on time with uniform choppers! (7)

I believe the answer is:

isodont

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'uniform choppers' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'one rotten fellow on time' is the wordplay.
'one' becomes 'i' (Roman numeral).
'rotten fellow' becomes 'sod' (I can't justify this - if you can you should believe this answer much more).
'time' becomes 't' (abbreviation).
'i'+'sod'+'on'+'t'='ISODONT'

'with' is the link.

Can you help me to learn more?

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

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