Another time in the north (4)
I believe the answer is:
then
'another time' is the definition.
'the north' is the wordplay.
'north' becomes 'n' ('N' can be a synonym of 'north').
'the'+'n'='THEN'
'in' acts as a link.
(Other definitions for then that I've seen before include "Subsequently - previously" , "Once upon a time" , "soon?" , "Consequently" , "At that time; next" .)