Example of trendy position (8)
I believe the answer is:
instance
'example' is the definition.
('instance' can be a synonym of 'example')
'trendy position' is the wordplay.
'trendy' becomes 'in'.
'position' becomes 'stance' (stance is a kind of position**).
'in'+'stance'='INSTANCE'
'of' acts as a link.
(Other definitions for instance that I've seen before include "A case or example of something" , "An insect (anag.)" , "Exemplify" , "Specimen" , "Cite as an example" .)