One going wrong about newspaper, regularly (5)
I believe the answer is:
often
'regularly' is the definition.
(often means regularly or frequently)
'one going wrong about newspaper' is the wordplay.
'going wrong' indicates an anagram.
'about' means one lot of letters goes inside another.
'newspaper' becomes 'FT' (Financial Times newspaper).
'one' with letters rearranged gives 'oen'.
'oen' going around 'ft' is 'OFTEN'.
(Other definitions for often that I've seen before include "Frequent" , "In many instances" , "Perhaps daily" , "More than occasionally" , "on numerous occasions" .)