Go for one, ready to try it? (4)
I believe the answer is:
game
'go for one' is the definition.
(go is a kind of game)
'ready to try it?' is the wordplay.
'ready to try' becomes 'gam' (I can't justify this - if you can you should believe this answer much more).
'it?' becomes 'e' ('e' can mean 'electronic' which is similar to 'IT').
'gam'+'e'='GAME'
Can you help me to learn more?
(Other definitions for game that I've seen before include "Pastime - quarry" , "eg Badminton" , "brag, maybe" , "Hunted animals or birds" , "For instance, go" .)