Re-doing, foolishly took no notice of (7)
I believe the answer is:
ignored
'took no notice of' is the definition.
(I've seen this before)
're-doing foolishly' is the wordplay.
'foolishly' indicates anagramming the letters.
're'+'doing'='redoing'
'redoing' anagrammed gives 'IGNORED'.
(Other definitions for ignored that I've seen before include "Turned a blind eye to" , "Paid no attention to" , "Snubbed" , "Disregarded intentionally; failed to consider" , "Shunned" .)