Being corrupt is forgivable if I am involved (5)
I believe the answer is:
venal
'being corrupt' is the definition.
(similar in meaning)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for venal that I've seen before include "Influenced by bribery, corrupt" , "Easily corrupted" , "Capable of being corrupted" , "motivated by corruption" , "can be bought cheaply" .)