Those magnetic foreigners? (5)
I believe the answer is:
poles
'foreigners?' is the definition.
The answer and definition can be both people as well as being plural nouns.
Maybe there's a link between them I don't understand?
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for poles that I've seen before include "Nationality of citizens of Warsaw" , "Ends of the earth" , "East Europeans" , "Rods of wood or metal" , "Extremities of the earth's axis" .)