Kid, student with a fine skill turns up for battle (9)
I believe the answer is:
trafalgar
'for battle' is the definition.
(Trafalgar is an example)
'kid student with a fine skill turns up' is the wordplay.
'kid' becomes 'rag' (both can mean to tease).
'student' becomes 'L' (as in L-plates for learner drivers).
'with' says to put letters next to each other.
'fine skill' becomes 'fart' (I am not sure about this - if you are sure you should believe this answer much more).
'turns up' is a reversal indicator.
'rag'+'l'+'a'+'fart'='raglafart'
'raglafart' written backwards gives 'TRAFALGAR'.
Can you help me to learn more?
(Other definitions for trafalgar that I've seen before include "Cape" , "Victory of 1805" , "Nelson's last battle" , "Nelson's eighteen hundred and five victory" , "1805 naval battle" .)