Whence to sail back from the tropics (4)
I believe the answer is:
port
'tropics' is the definition.
The definition and answer can be both locations as well as being singular nouns.
Maybe you can see an association between them that I can't see?
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for port that I've seen before include "Anchorage" , "where one would expect water" , "Drink passed to the left" , "'Any . . . . In a storm'" , "Stanley perhaps" .)