In accordance with the latest fad (6)
I believe the answer is:
trendy
'in accordance with the latest fad' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for trendy that I've seen before include "Hot" , "Less sensible; a dye plant" , "With-it" , "Up to date, fashionable" , "all the rage" .)