Poker boo-boo (7)
I believe the answer is:
misdeal
'poker boo-boo' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for misdeal that I've seen before include "Give out cards incorrectly" , "Right hand that isn't" , "Faulty distribution" , "Give out the cards wrongly" , "Wrongly issue" .)