A name in fashion (5)
I believe the answer is:
style
I believe this is a double definition.
'a name' is the first definition.
(I know that style is a kind of name)
'fashion?' is the second definition.
(I know that fashion can be written as style)
'in' is the link.
(Other definitions for style that I've seen before include "Particular kind, of fashion say" , "Manner; elegance" , "Phraseology" , "Pointed pen" , "Designate" .)