Ready to accept newspaper article's conclusion in many cases (5)
I believe the answer is:
often
'in many cases' is the definition.
(I've seen this before)
'ready to accept newspaper article's conclusion' is the wordplay.
'ready' becomes 'on' (if a device is on it is ready for use).
'to accept' means one lot of letters goes inside another.
'newspaper' becomes 'ft'.
'conclusion' indicates one should take the final letters.
The last letter of 'article' is 'e'.
'ft'+'e'='fte'
'on' placed around 'fte' is 'OFTEN'.
(Other definitions for often that I've seen before include "Perhaps daily" , "In many instances" , "on many occasions" , "In many cases" , "Multiply" .)