Love endless river (3)
I believe the answer is:
nil
'love' is the definition.
(love and nil mean zero in cricket and football)
'endless river' is the wordplay.
'endless' means to remove the last letter.
'river' becomes 'nile' (Nile River is an example).
'nile' with its last letter taken away is 'NIL'.
(Other definitions for nil that I've seen before include "Nix, nada, nothing" , "Nothing, zilch" , "Don't despair - . . . desperandum" , "Love" , "Latin zero" .)