What the driver did, tied up around a road junction (7)

I believe the answer is:

motored

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'what the driver did' is the definition.
I can't judge whether this definition defines the answer.

'tied up around a road junction' is the wordplay.
'tied up' becomes 'moored ' (I've seen this in another clue).
'around' indicates putting letters inside.
'a road junction' becomes 'T' (T-junction is a type of road junction).
'moored' placed around 't' is 'MOTORED'.

Can you help me to learn more?

I've seen this clue in the Evening Standard.

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