Solvers! I think this one's moderately tricky, so thanks for trying it, and do let me know how you got on. Here's the wash-up for any you didn't catch:
ACROSS 1A. Traitor = RAT, after "decks" initiated = D.5A. Reversal of: finest = TOP + hack (journalist) = ED.7A. Double def.8A. anag. CRIED9A. reversal of study = DEN, over first of "revisions" = R. DOWN 2D. Go wrong again = RE-SIN.3D. Drag = TOW + Queen Liz = ER.4D. Double def. (Porridge and stir are both UK slang for prisons.)5D. Double def.6D. father = PA + daughter = D.
