Elegant, stylish (4)
I believe the answer is:
posh
I believe this is a double definition.
'elegant' is the first definition.
(I've seen this before)
'stylish' is the second definition.
(similar in meaning)
(Other definitions for posh that I've seen before include "refined" , "High-class" , "Stylishly luxurious" , "Upper-class - Victoria Beckham?" , "Peterborough" .)