Running through Paris, sounds sensible enough (5)
I believe the answer is:
seine
'sensible enough' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.
'running through paris sounds' is the wordplay.
I cannot quite understand how this works, but
'through' could be 'in' and 'in' is found within the answer.
The remaining letters 'see' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for seine that I've seen before include "French river -- type of fishing net" , "Second longest river in France" , "Paris's river" , "Paris river" , "Parisian river" .)