Route abroad - a French line including terminals in London and France? (10)

'terminals in london and france?' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.

'route abroad a french line' is the wordplay.
'abroad' indicates anagramming the letters (abroad can mean moving around).
'a french' becomes 'un' ('a' in French).
'line' becomes 'nel' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'route' with letters rearranged gives 'eurot'.
'eurot'+'un'+'nel'='EUROTUNNEL'

'including' is the link.

Can you help me to learn more?