Trendy layer found in trousers (6)
I believe the answer is:
inseam
'in trousers' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'trendy layer' is the wordplay.
'trendy' becomes 'in' ('in' can mean fashionable).
'layer' becomes 'seam' (seam is a kind of layer).
'in'+'seam'='INSEAM'
'found' acts as a link.
Can you help me to learn more?
I've seen this clue in The Irish Times.
Want a hint initially instead of a full solution?
Install my app