Cricketer's attempt to keep right and then left, say (5,3)
I believe the answer is:
short leg
'cricketer's attempt' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.
'keep right and then left say' is the wordplay.
'keep right' becomes 'short' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'and then' is a charade indicator (letters next to each other) (I've seen this in other clues).
'left' becomes 'l' (common abbreviation).
'say' becomes 'eg' (short for 'exempli gratia', 'for example' in Latin).
'short'+'l'+'eg'='SHORT-LEG'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for short leg that I've seen before include "one who isn't in" , "Fieldsman" , "Fielder" .)