Crossword Genius

Become older than the thoroughfare (7)

Ross

I believe the answer is:

passage

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

'thoroughfare' is the definition.
(thesaurus)

'become older than' is the wordplay.
I cannot quite see how this works, but
'become older' could be 'age' (I've seen this in another clue) and 'age' is located in the answer.
The remaining letters 'pass' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

'the' is the link.

Can you help me to learn more?

(Other definitions for passage that I've seen before include "crossing" , "course" , "Literary extract" , "Way through; part of text" , "Section of text; journey" .)

I've seen this clue in The Irish News.
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