Minor malfunction is outside usual standard (6)
I believe the answer is:
normal
'usual standard' is the definition.
'normal' can be an answer for 'standard' (I've seen this before). I'm not sure about the 'usual' bit.
'minor malfunction is outside' is the wordplay.
'is outside' says the answer is hidden in the clue (a word is around or outside the answer).
'NORMAL' can be found hidden inside 'minor malfunction'.
Can you help me to learn more?
(Other definitions for normal that I've seen before include "Commonplace" , "Conforming to what is usual" , "Standard - well-adjusted" , "Standard; at right angles" , "Average or ordinary" .)