World capital near the 60th parallel (4)
I believe the answer is:
oslo
'world capital near the 60th parallel' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for oslo that I've seen before include "Northern capital of Czechoslovakia?" , "Capital often frozen" , "Scandinavian capital" , "European capital in go-slow" , "Former Christiania" .)