Outcome in favour of channel (7)
I believe the answer is:
product
'outcome' is the definition.
(thesaurus)
'in favour of channel' is the wordplay.
'in favour of' becomes 'pro' (I've seen this before).
'channel' becomes 'duct' ('duct' can be a synonym of 'channel'**).
'pro'+'duct'='PRODUCT'
(Other definitions for product that I've seen before include "Result of multiplication" , "Manufactured object" , "See 5" , "Drop cut (anag.)" , "Manufactured article for sale" .)