Second grade, slow moving game? (5)
I believe the answer is:
bowls
'game?' is the definition.
(I know that bowls is a type of bowling)
'second grade slow moving' is the wordplay.
'second' becomes 'b' (B can mean second eg B-side).
'grade slow moving' becomes 'owls' (I can't explain this - if you can you should believe this answer much more).
'b'+'owls'='BOWLS'
Can you help me to learn more?
(Other definitions for bowls that I've seen before include "woods" , "Kitchen pots for storing" , "Lawn game" , "Throws or rolls a ball" , "Game played on green" .)