Boy (or girl) bringing up north regularly (6)
I believe the answer is:
'regularly' is the definition.
'boy or girl bringing up north' is the wordplay.
I cannot quite see how this works, but
'boy' could be 'even' and 'even' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for evenly that I've seen before include "Smoothly, uniformly" , "Material" , "constant rate" , "In measured or smooth manner" , "In a level and regular way" .)