Establish one's innocence but get bound over? (5)
I believe the answer is:
clear
'bound over?' is the definition.
(I've seen this before)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for clear that I've seen before include "Acquit" , "Pellucid" , "Transparent, easy to see through" , "Exculpate" , "Transparent - free of obstruction" .)