Study AV for example to see what happened to Saul (10)
I believe the answer is:
conversion
'example to see what happened to saul' is the definition.
I can't tell whether this defines the answer.
'study av' is the wordplay.
'study' becomes 'con' (conning is a kind of studying).
'av' becomes 'version' (I am not sure about this - if you are sure you should believe this answer much more).
'con'+'version'='CONVERSION'
'for' is the link.
Can you help me to learn more?
(Other definitions for conversion that I've seen before include "necessary to achieve a goal" , "Religious experience" , "Paul's Damascene experience" , "change of heart" .)