Legendary hero who provided transport for a doctor (7)

I believe the answer is:

caradoc

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

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

'transport for a doctor' is the wordplay.
'transport' becomes 'car' (car is a method of transport).
'for' means one lot of letters go next to another.
'doctor' becomes 'doc' (synonyms).
'car'+'a'+'doc'='CARADOC'

'provided' is the link.

Can you help me to learn more?

(Other definitions for caradoc that I've seen before include "British chieftain" , "Form of Caractacus" .)

I've seen this clue in the Evening Standard.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.