Look around part of Spain for a river (5)
I believe the answer is:
seine
'river' is the definition.
(river in France)
'look around part of' is the wordplay.
'look' becomes 'see' ().
'around' means one lot of letters goes inside another.
'part of' becomes 'in' (being in something means being part of it).
'see' going around 'in' is 'SEINE'.
'spain for a' acts as a link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for seine that I've seen before include "Paris's river" , "French river -- type of fishing net" , "Parisian river" , "Paris river" , "Second longest river in France" .)