One tempting polar resident to move north (5)
I believe the answer is:
satan
'one tempting polar resident to move north' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'one' is the wordplay.
I cannot quite understand how this works, but
'one' could be 'an' (an apple is one apple) and 'an' is found in the answer.
The remaining letters 'sat' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for satan that I've seen before include "Apollyon" , "Fiend" , "Prince of Darkness" , "Diabolical figure" , "arch-fiend" .)