Access content of free channel (8)
I believe the answer is:
recourse
'access' is the definition.
(I've seen this before)
'content of free channel' is the wordplay.
'content of' means to look at the middle letters.
'channel' becomes 'course' (I've seen this before).
The middle letters of 'free' are 're'.
're'+'course'='RECOURSE'
(Other definitions for recourse that I've seen before include "Resource used to access help" , "Legal right to demand payment" , "Source of aid in troubles" , "Facility" , "Refuge, resort" .)