An upsetting skin mark from motorsport (6)

I believe the answer is:

nascar

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'motorsport' is the definition.
I don't know anything about this answer so I cannot tell whether this works.

'an upsetting skin mark' is the wordplay.
'upsetting' is a reversal indicator.
'skin mark' becomes 'scar' (I've seen this in another clue).
'an' in reverse letter order is 'na'.
'na'+'scar'='NASCAR'

'from' acts as a link.

Can you help me to learn more?

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

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