A small dosage for the weekend:

1. Survives amphetamine feast of biblical importance (4,6) - last supper

2. Politician protected by abnormal reaction to gravity (10) - importance

3. Maybe queen is scared of kidnapping the unoccupied guards (10) - Beefeaters

4. Our vines disfigured memorial (8) - souvenir

5. Wins trial before peers (10) - checkmates

6. "What are Trent Bridge and Headingley at?" said in confusion (6) - stadia

First and last letters in alphabetical order by way of hints EI

Enjoy!

4. I will try my luck with 'souvenir' anagram of our vines.

Salut Kev.

1. Last Supper

lasts (survives) + upper (amphetamine)

Both good - hi Remi, your luck's in!

6. Stadia (anag. of 'at said') (For our overseas friends they are both cricket grounds in England)

Bernie

Nice ones Lex

Thanks Bernie

Hints: direct on the right for 2 and 3, on the left for 5

More hints: 2 and 3 both have British connotations

I'll give #5 a try

checkmates - check(trial) before / mates(peers)

3. bee/fea(te)rs

Two more bite the dust, just 2 left...

2. Anag (reaction) + member of parliament -> importance

Nicely wound up, Rog!