Some new students point to river (7)
I believe the answer is:
moselle
'river' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'some new students point' is the wordplay.
'new' indicates an anagram.
'students' becomes 'LL' (two abbreviations for learner).
'point' becomes 'E' (compass point).
'some' with letters rearranged gives 'mose'.
'mose'+'ll'+'e'='MOSELLE'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for moselle that I've seen before include "Fr. river, department; German wine" , "French department" , "River; white wine" , "French or German white wine" , "Light white wine" .)