Run various trips round capital of Norway (6)
I believe the answer is:
Here is my best explanation:
'run' is the definition.
(sprinting is a kind of running)
'various trips round capital of norway' is the wordplay.
'various' is an anagram indicator.
'round' is an insertion indicator.
'capital of' indicates taking the first letters.
The first letter of 'norway' is 'n'.
'trips' with letters rearranged gives 'sprit'.
'sprit' placed around 'n' is 'SPRINT'.
(Other definitions for sprint that I've seen before include "Dash", "Run quickly", "Short race at full speed", "Rush", "Quick dash", "Run fast", "Short fast run", "Run at full speed for a short distance", "Run rapidly" and "Short run at full speed".)