Encourages a youngster at the Oval? (4,2)
I believe the answer is:
eggs on
'encourages' is the definition.
(I've seen this in another clue)
'a youngster at the oval?' is the wordplay.
'a youngster' becomes 'son' (a child).
'at' is a charade indicator (letters next to each other) (I've seen this in other clues).
'the oval?' becomes 'egg' (I can't explain this - if you can you should believe this answer much more).
'son' after 'egg' is 'EGGS ON'.
Can you help me to learn more?
(Other definitions for eggs on that I've seen before include "Incites" , "Urges" .)