Sir Lancelot.

[Brenden]

12.a. Go bad (5) T???E. Think my brain is frozen this morning. Many thanks.

[birdie05]

12A Addle?

[Zhukov]

seen as Addle...your t ?

[Clarissa9]

12a. I have Addle for this. 5d is Britannia metal.

[birdie05]

5D Britannia metal which gives you the A

[Brenden]

Thanks birdie and Zhukov, I suppose if I had the right letters it would have been easier -

[Brenden]

Who do you think spelt Britannia with a double T. Am I sad or what?

[Zhukov]

youre welcome

[bravodeltic]

trouble

[bravodeltic]

sorry misread the clue trying to do two things at once

[hevian54]

is is not addle