Passionate trendy on edge (7)
I believe the answer is:
intense
'passionate' is the definition.
(I've seen this before)
'trendy on edge' is the wordplay.
'trendy' becomes 'in' ('in' can mean fashionable).
'on edge' becomes 'tense' (I've seen this before).
'in'+'tense'='INTENSE'
(Other definitions for intense that I've seen before include "Acute, exteme" , "Showing strong feelings or opinions" , "Acute difficulty" , "Highly emotional" , "amplified?" .)