Queen interrupting silly sketch (5)
I believe the answer is:
draft
'sketch' is the definition.
(I know that draft is a type of sketch)
'queen interrupting silly' is the wordplay.
'queen' becomes 'r' (abbreviation for regina, e.g. in ER ).
'interrupting' is an insertion indicator.
'silly' becomes 'daft' (I've seen this in another clue).
'r' put inside 'daft' is 'DRAFT'.
(Other definitions for draft that I've seen before include "Formulate" , "Sketch; money order" , "plan outlined" , "Current of air or preliminary version" , "Provisional document" .)