Very cold friends provide some latitude (6,6)
I believe the answer is:
arctic circle
'some latitude' is the definition.
(Arctic Circle is an example)
'very cold friends' is the wordplay.
'very cold' becomes 'arctic' (I've seen this before).
'friends' becomes 'circle' (I can't justify this - if you can you should give a lot more credence to this answer).
'arctic'+'circle'='ARCTIC CIRCLE'
'provide' is the link.
Can you help me to learn more?
(Other definitions for arctic circle that I've seen before include "Line circling the north pole" , "In parallel" , "Top of the world" , "Imaginary line at approximately latitude 66 degrees 32' North" .)