Room where cleaner receives UK honour (7)
I believe the answer is:
chamber
'room' is the definition.
(I know that room can be written as chamber)
'cleaner receives uk honour' is the wordplay.
'cleaner' becomes 'char' (charwoman is a type of cleaner).
'receives' indicates putting letters inside (inserted letters are received).
'uk honour' becomes 'mbe' (I've seen this in another clue).
'char' going around 'mbe' is 'CHAMBER'.
'where' acts as a link.
(Other definitions for chamber that I've seen before include "posh room" , "A house of parliament" , "Room where a judge transacts business" , "Large room" , "A formal room as for judge" .)