Treated our diversion as a business path (5,5)
I believe the answer is:
trade route
'a business path' is the definition.
'trade route' can be an answer for 'path' (trade route is a kind of path). I am unsure of the 'a business' bit.
'treated our diversion' is the wordplay.
'diversion' is an anagram indicator.
'treated'+'our'='treatedour'
'treatedour' anagrammed gives 'TRADE ROUTE'.
'as' is the link.
Can you help me to learn more?
(Other definitions for trade route that I've seen before include "Mercantile artery" , "Way followed by merchants" , "path of traffic" , "Caravans may follow it" .)