Skittles technique's failure sorted out beforehand (6,4)

'skittles technique's' is the definition.
I don't know anything about this answer so I cannot tell whether this works.

'failure sorted out beforehand' is the wordplay.
I cannot really understand how this works, but
'failure' could be 'flop' (flop is a kind of failure) and 'flop' is present in the answer.
an anagram of 'sorted' is 'dorset' which is located in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?