Note with F discordant repeatedly (5)
I believe the answer is:
often
'repeatedly' is the definition.
(I've seen this before)
'note with f discordant' is the wordplay.
'with' means one lot of letters go next to another.
'discordant' indicates anagramming the letters.
'note' put after 'f' is 'fnote'.
'fnote' is an anagram of 'OFTEN'.
(Other definitions for often that I've seen before include "Frequently, not seldom" , "occurring with frequency" , "Much of the time" , "Frequently, many times" , "More than occasionally" .)