Europeans as far away as can be! (5,5)
I believe the answer is:
poles apart
'can be' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'europeans as far away' is the wordplay.
I cannot quite see how this works, but
'europeans' could be 'poles' (Pole is an example) and 'poles' is located in the answer.
'away' could be 'apart' (I've seen this in another clue) and 'apart' is located in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'as' is the link.
Can you help me to learn more?
(Other definitions for poles apart that I've seen before include "Unlikely to meet" , "Differing greatly" , "Having widely divergent opinions" , "Incompatible" , "far away from each other?" .)