More bitter, shown up accepting European withdrawal
I believe the answer is:
re-treat
'withdrawal' is the definition.
(I've seen this before)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for re-treat that I've seen before include "Fall back before the enemy" , "Withdraw, go back" , "Pull back, withdraw" , "Withdrawal of troops or for meditation" , "Move backwards" .)