I'm back; going around in a little car (4)

I believe the answer is:

mini

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

'a little car' is the definition.
'mini' can be an answer for 'car' (Mini Cooper). I'm unsure of the 'a little' bit.

'i'm back going around in' is the wordplay.
'i'm' becomes 'im' ().
'back' is a reversal indicator.
'going around' shows that the letters should be reversed in order.
'im' backwards is 'mi'.
'in' back-to-front is 'ni'.
'mi'+'ni'='MINI'

Can you help me to learn more?

(Other definitions for mini that I've seen before include "(Car etc) of small size" , "Car designed by Issigonis" , "Short skirt - small car" , "Little - car" , "Iconic economy car (introduced in 1959)" .)

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

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