Undisciplined characters winningly handy at poker? (4,5)
I believe the answer is:
wild cards
'winningly handy at poker?' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'undisciplined characters' is the wordplay.
'undisciplined' becomes 'wild' (I can't justify this - if you can you should believe this answer much more).
'characters' becomes 'cards' (card can mean an eccentric character).
'wild'+'cards'='WILD CARDS'
Can you help me to learn more?
(Another definition for wild cards that I've seen is " Maybe competitors in US open".)