Gripped object stupid European will break (9)
I believe the answer is:
engrossed
'gripped' is the definition.
(I've seen this before)
'object stupid european will break' is the wordplay.
'object' becomes 'end' (both can mean a goal or purpose).
'stupid european' becomes 'grosse' (I can't explain this - if you can you should believe this answer much more).
'will break' is an insertion indicator (inserted letters break into the word).
'end' enclosing 'grosse' is 'ENGROSSED'.
Can you help me to learn more?
(Other definitions for engrossed that I've seen before include "Deeply engaged" , "Preoccupied" , "Completely absorbed, rapt" , "Wrapt, immersed" , "Captive" .)