Know instinctively northern dweller accepts temperature (6)
I believe the answer is:
intuit
'know instinctively' is the definition.
(to know intuitively)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for intuit that I've seen before include "Understand instinctively" , "Instinctively come to know" , "work things out instinctively" , "makes sense" , "Know by direct perception" .)