I know that there have been several posts concerning this puzzle but one clue has never been satisfactorily answered.
12 across Take off a bad film (4)
It is definitely S?I? and the possible answers given have been SKIT, SKIM or SKIN.
These could all mean "take off" but no-one has justified the "bad film" bit. There have been several links to various dictionaries purporting to justify "bad film" but nothing has been conclusive.
Can anyone give me a source that definitely gives me an answer that is "bad film"?