Severe damp I eliminated at the far back of the ship (9)
I believe the answer is:
sternmost
'i eliminated at the far back of the ship' is the definition.
I can't judge whether this definition defines the answer.
'severe damp' is the wordplay.
'severe' becomes 'stern' (I've seen this in another clue).
'damp' becomes 'most' (I can't explain this - if you can you should believe this answer much more).
'stern'+'most'='STERNMOST'
Can you help me to learn more?
(Another definition for sternmost that I've seen is " Furthest back on a ship".)