Hi Les and everybody, I've just got down from a set of stepladders as I'm helping a friend decorate and it was a great surprise to see Les's decision. I was pushing it a bit with 'purifier' as a definition and sometimes I find it more difficult coming up with 1 that's not already been posted than wordplay; think I understand your previous comments chrise (please persevere).
I echo Les's remarks re the quality of entries and thanks for all your kind words.
Again, you've introduced me to something new Les and I'm amusing myself by contemplating other films in this format.