More than a hundred corrections to ignore (6)
I believe the answer is:
region
'more than a hundred' is the definition.
(hundred could historically mean part of a region)
'corrections to ignore' is the wordplay.
'corrections to' indicates an anagram.
'ignore' with letters rearranged gives 'REGION'.
(Other definitions for region that I've seen before include "Area of country" , "Tract or area" , "Area, territory" , "Area, location" , "Area having definable character" .)