Dash around the lane? (4)
I believe the answer is:
elan
'dash' is the definition.
(synonyms)
'around the lane?' is the wordplay.
'around' indicates anagramming the letters.
'lane' anagrammed gives 'ELAN'.
(Other definitions for elan that I've seen before include "Dash in French lane" , "'Panache, flair (4)'" , "Flamboyance" , "Stylish verve" , "spirit" .)