Dutch port (9)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
rotterdam
'dutch port' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for rotterdam that I've seen before include "European port" , "city abroad" , "Dutch city and port" , "Major North Sea port - tarred tom (anag)" , "European city" .)