Aim to interrupt experiment with it (6)
I believe the answer is:
trendy
'with it' is the definition.
(both can mean fashionable)
'aim to interrupt experiment' is the wordplay.
'aim' becomes 'end' (both can mean a goal or purpose).
'to interrupt' means one lot of letters goes inside another.
'experiment' becomes 'try' (I've seen this in another clue).
'end' going into 'try' is 'TRENDY'.
(Other definitions for trendy that I've seen before include "Informally in the latest fashion" , "Up to date, fashionable" , "Informally fashionable" , "In vogue" , "'Hip, fashionable (6)'" .)