This is an updated and improved version of the most fiendish and evil grid I ever submitted to the site. By my count there are at least 13 red herrings. Good luck!

Brilliant! 5* Lorna, J Sooz et al, you will love this, highly recommended. P.S. Yerushalmi are you sure there were ONLY 13 red herrings? (¬‿¬) Great occupational health knowledge of Luton. Well Done

@Pat - don't bother with this, you would need an IQ level in double figures for this, and you fall about 8 points below that.

So tricky! thanks

5*- GENIUNE GENIUS!!! Very hard, sublimely brilliant. some jaw-droppingly good bits (mad Hatter- how long did I chase THAT white rabbit?) Hats off, this was in a league of it's own- so well thought out, so much work- even a revision?!
It will make a lot of folks angry! ;)

stjohn. Why the requirement to sink to personal abuse? It says far more about the person giving it than the target. Very very sad.

Good clues except for the tenuous mercury ones!

Very clever and enjoyable