Nominal half mile in a taxi (5)

I believe the answer is:

caleb

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'nominal' is the definition.
I know nothing about this answer so I can't tell whether this works.

'half mile in a taxi' is the wordplay.
'half' means to take half the letters.
'in' means one lot of letters goes inside another.
'a taxi' becomes 'cab' (synonyms).
'mile' halved is 'le'.
'le' going within 'cab' is 'CALEB'.

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(Another definition for caleb that I've seen is " Chap".)

I've seen this clue in the Evening Standard.

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