Crossword Genius

Flier advanced to Rome's edge following Roman road (7)

Ross

I believe the answer is:

aviator

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

'flier' is the definition.
(synonyms)

'advanced to rome's edge following roman road' is the wordplay.
'advanced' becomes 'a'.
'to rome's edge' becomes 'tor' (I can't justify this - if you can you should give a lot more credence to this answer).
'following' says to put letters next to each other.
'roman road' becomes 'via' (I've seen this before).
'tor' put after 'via' is 'viator'.
'a'+'viator'='AVIATOR'

Can you help me to learn more?

(Other definitions for aviator that I've seen before include "Navigator of the air" , "Airman" , "Flier" , "Aeronaut" , "Pilot of plane" .)

I've seen this clue in The Telegraph.
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