A game and its objective (7)
I believe the answer is:
Here is my best explanation:
'objective' is the definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.
'a game and its' is the wordplay.
'a game' becomes 'ball' (ball game is a kind of game).
'and' says to put letters next to each other (I've seen this in other clues).
'its' becomes 'net' (I can't explain this - if you can you should believe this answer much more).
'ball' after 'net' is 'NETBALL'.
Can you help me to learn more?