sat indy

[hope3fully]

11a essential to what a king of france is doing 6 3 first letter is t, last is f 12d part of kitchen( all but ceiling) amid rising gloom 10

[bibblebub]

11a taking off = ...whaT A KING OF France...

[hope3fully]

thank you bibblebub

[bibblebub]

12d have you missed a word from the clue? because I think it might be

KETTLEDRUM

which is part of the percussion section of an orchestra, commonly called the kitchen, and that word is ETTLED inside MURK backwards

so I'm guessing the missing word might be 'lit' because when you remove the ceiling i.e. first letter of SETTLED you get the required letters.

[hope3fully]

of course --------- thank you again bibblebub

[hope3fully]

of course --------- thank you again bibblebub

[bibblebub]

you're welcome (and I'll assume 'lit' was missing)

[hope3fully]

it was