Took no notice of redoing arrangement (7)
I believe the answer is:
ignored
'took no notice' is the definition.
(I've seen this before)
'redoing arrangement' is the wordplay.
'arrangement' is an anagram indicator.
'redoing' with letters rearranged gives 'IGNORED'.
'of' acts as a link.
(Other definitions for ignored that I've seen before include "overlooked" , "cast aside" , "Paid no heed" , "Turned a blind eye to" , "Disregarded intentionally; failed to consider" .)