Still ignoring limits of French and Spanish accent (5)
I believe the answer is:
tilde
'spanish accent' is the definition.
(accent mark written over n in Spanish)
'still ignoring limits of french' is the wordplay.
'ignoring limits' means to look at the middle letters (the edges or limits of the word are removed).
'of french' becomes 'de' ('of' in French).
The middle of 'still' is 'til'.
'til'+'de'='TILDE'
'and' is the link.
(Other definitions for tilde that I've seen before include "Mark over the letter 'n' in Spanish" , "Diacritical sign over letter" , "Augmentation of text" , "Spanish accent, as in se-or, ma-ana etc." , "part of Sao Paulo, originally" .)