Blunders, slips (6)
I believe this is a double definition.
'blunders' is the first definition.
(I've seen this in another clue)
'slips' is the second definition.
(I've seen this in another clue)
(Other definitions for errors that I've seen before include "Mistakes and omissions" , "Mistakes, slip-ups" , "Mistakes, blunders" , "Subject of Shakespearean comedy" , "Faults" .)
(Other definitions for mistakes that I've seen before include "Errors" , "Blunders, slips" , "Misguided or wrong acts" .)