It jumps over the side and plays on the grass (7,4)

'plays on the grass' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'it jumps over the side' is the wordplay.
'it jumps' becomes 'cricket' (I can't explain this - if you can you should believe this answer much more).
'over' says to put letters next to each other (in a down clue, some letters go over others).
'the side' becomes 'team' (a side is a sporting team).
'cricket'+'team'='CRICKET TEAM'

'and' is the link.

Can you help me to learn more?