Love to see a student chasing victory at this ground (4)
I believe the answer is:
Here is my best explanation:
'this ground' is the definition.
'love to see a student chasing victory' is the subsidiary indication.
'love' becomes 'o' (In tennis, 'love' means 'zero').
'to see a' becomes 'a'.
'student' becomes 'l'.
'chasing' means one lot of letters go next to another.
'victory' becomes 'v'.
'al' put after 'v' is 'val'.
'at' is the link.
(Other definitions for oval that I've seen before include "Surrey county cricket ground", "Test site", "Stretched circle?", "Like an egg", "Shape of 25", "Shape of US president's office", "Ellipsoidal", "Ellipse", "form of an egg" and "Shape of egg".)