South American politician, or an old pig from the right (9)

I believe the answer is:

bolsonaro

I'm a little stuck... Click here to teach me more about this clue!

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

'or an old pig from the right' is the wordplay.
'old' becomes 'o' (common abbreviation eg in OE for Old English).
'pig' becomes 'slob' (synonyms).
'from the right' says the letters should be written backwards.
'or'+'an'+'o'+'slob'='oranoslob'
'oranoslob' backwards is 'BOLSONARO'.

Can you help me to learn more?

I've seen this clue in The Guardian.

Want a hint initially instead of a full solution? Install my app