Panache, flair (4)
I believe the answer is:
elan
This clue is a double definition.
'panache' is the first definition.
(synonyms)
'flair' is the second definition.
(synonyms)
(Other definitions for elan that I've seen before include "Style and liveliness" , "Energy, style and enthusiasm" , "Vigour, panache" , "Flamboyance" , "Flair and dash" .)