My brain is not working very well today and I am getting nowhere with this crossword. Will one of you genius's please give me a (very loaded) clue about T2 and maybe this will kick start the laggardly brain-cells into action. All contributions gratefully received but will not be on-line again until later to say thank you.
Many thanks everyone. The old grey matter did unclog a bit but this one is going to be a 'failed' as a deadline can no longer be ignored or I am in real trouble!