Finish degree course in ferry port (6)
I believe the answer is:
dieppe
'ferry port' is the definition.
'dieppe' can be an answer for 'port' (I've seen this before). I am not sure about the 'ferry' bit.
'finish degree course' is the wordplay.
'finish' becomes 'die'.
'degree course' becomes 'ppe' (I am not sure about this - if you are sure you should believe this answer much more).
'die'+'ppe'='DIEPPE'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for dieppe that I've seen before include "French port opposite Kent" , "Fr port, resort on Channel" , "French English channel port" , "Port of N. France" , "Channel port in northern France" .)