Trends, fashions (6)
I believe the answer is:
styles
This clue is a double definition.
'trends' is the first definition.
('style' can be a synonym of 'trend')
'fashions' is the second definition.
('style' can be a synonym of 'fashion')
(Other definitions for styles that I've seen before include "Fashions and trends" , "Fashions or ways of doing things" , "Fashions and manners" , "Fashions or distinctive modes" , "Approaches" .)