Style and vigour shown in lane-changing (4)
I believe the answer is:
elan
'style and vigour' is the definition.
(I've seen this before)
'lane-changing' is the wordplay.
'changing' indicates an anagram.
'lane' anagrammed gives 'ELAN'.
'shown in' acts as a link.
(Other definitions for elan that I've seen before include "Stylish enthusiasm" , "'Panache, flair (4)'" , "French dish in lane" , "Dash, style" , "Combination of style and vigour" .)