Footballer right about mad lad with ball (7)
I believe the answer is:
ronaldo
'footballer' is the definition.
(I've seen this before)
'right about mad lad with ball' is the wordplay.
'right about mad lad' becomes 'ronald' (I can't explain this - if you can you should give a lot more credence to this answer).
'with' says to put letters next to each other.
'ball' becomes 'o' (O looks like a ball).
'ronald'+'o'='RONALDO'
Can you help me to learn more?
(Other definitions for ronaldo that I've seen before include "Cristiano - - Portugese striker" , "European footballer" , "Red" , "Soccer star" .)