Get ready to have another shot (6)
I believe the answer is:
reload
'get ready' is the definition.
Although both the answer and definition are verbs in their base form, I can't see how they can define each other.
'another shot' is the wordplay.
'another' becomes 're' (I've seen this in other clues).
'shot' becomes 'load' (I can't explain this - if you can you should give a lot more credence to this answer).
're'+'load'='RELOAD'
'to have' acts as a link.
Can you help me to learn more?
(Other definitions for reload that I've seen before include "pack, once more" , "Fill (weapon) again" , "Put more bullets in" , "Give further ammunition to" , "Ordeal (anag.)" .)