Chucked into the sea? That's going too far! (9)
I believe the answer is:
overboard
'far' is the definition.
Both the answer and definition are adverbs. Maybe there's an association between them I don't understand?
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for overboard that I've seen before include "Very enthusiastic" , "Man ...! Stop the ship" , "Man ??? - he's fallen off the ship" , "(Fall) into the sea" , "Man . . . . . . . . . - ship's passenger in the sea" .)