Panache, style (4)
I believe the answer is:
elan
I believe this clue is a double definition.
'panache' is the first definition.
(synonyms)
'style' is the second definition.
(I know that style can be written as elan)
(Other definitions for elan that I've seen before include "Impetuosity - style" , "Dashing style" , "Stylish elegance" , "French vivacity" , "fizz" .)