Possibly six-sevenths foreign, but take no notice (6)
I believe the answer is:
ignore
'take no notice' is the definition.
(I've seen this before)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for ignore that I've seen before include "Spurn" , "Deliberately take no notice" , "Region in which to snub" , "Fail to notice (6)" , "Blank" .)