sir lancelot

[berny]

17d would the answer be envelope? any help would be appreciated

[alexanderd]

depends on the question

[Lie-in King]

17d Kneehole

Hi berny - it's nice if you post the full clue, number of letters & any you've placed, so that people without the puzzle can more readily help you - thanks! :-)

[No-crossword]

Kneehole