“Yes I, well, raced a little, looking back!” (4,5)

'yes i well raced a little looking back' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'yes i well raced a little looking back' is the wordplay.
'a little' says the answer is hidden in the clue (a little bit of the clue).
'looking back' says the letters should be written backwards.
'siwellrac' can be found hidden inside 'yes i well raced'.
'siwellrac' reversed gives 'CARL LEWIS'.

Can you help me to learn more?