Very trendy English plant (4)
I believe the answer is:
vine
'plant' is the definition.
(I know that Vine is a type of plant)
'very trendy english' is the wordplay.
'very' becomes 'v' (abbreviation).
'trendy' becomes 'in' ('in' can mean fashionable).
'english' becomes 'e' (abbreviation).
'v'+'in'+'e'='VINE'
(Other definitions for vine that I've seen before include "Fruiting climber" , "Climbing fruiting plant" , "Bearer of grape" , "Plant producing grapes" , "Climbing, twining plant" .)