Realise time’s running out for northerner (5)
I believe the answer is:
inuit
'northerner' is the definition.
(I've seen this before)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for inuit that I've seen before include "Eskimos" , "Indigenous Greenlanders" , "People of N American arctic regions" , "people from northern Canada" , "northern folk" .)