@hankir - I'm not sure if I understand the question, but the type I clues are those where the 'definition' part of the clue leads to a spoonerism of the grid entry, eg 'base part of leg' => 'low thigh', with the entry being a spoonerism of this; type II clues are those where the definition part of the clue is a spoonerism of the definition of the entry, eg 'it rings flocks' => 'it flings rocks' for 'sling'.
Competition entries must be type II clues - the top-placed entries for the last spoonerisms competition (ERADIATE) used 'Spread like buns seems', 'Bend seems' and 'Lay out, like Sprite'.