Love, send D:Ream up to play Things Can Only Get Better (3,11)
I believe the answer is:
nil desperandum
'can only get better' is the definition.
I can't judge whether this definition defines the answer.
'love send dream up to play' is the wordplay.
'love' becomes 'nil' (love and nil mean zero in cricket and football).
'to play' indicates anagramming the letters.
'send'+'dream'+'up'='senddreamup'
'senddreamup' with letters rearranged gives 'desperandum'.
'nil'+'desperandum'='NIL DESPERANDUM'
'things' acts as a link.
Can you help me to learn more?
(Other definitions for nil desperandum that I've seen before include "Soldier on" , "don't give up hope" , "Never give up" , "Don't despair" .)