Crossword Genius

A bundle of nerves to turn old car around … (6,4)

Ross

I believe the answer is:

spinal cord

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

'a bundle of nerves' is the definition.
I can't judge whether this definition defines the answer.

'turn old car around' is the wordplay.
'turn' becomes 'spin' (spin is a kind of turn).
'around' is an anagram indicator.
'old'+'car'='oldcar'
'oldcar' anagrammed gives 'alcord'.
'spin'+'alcord'='SPINAL CORD'

'to' is the link.

Can you help me to learn more?

I've seen this clue in The Guardian.
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