Due to demolition work, rule out bed and breakfast! (6)
I believe the answer is:
rubble
'due to demolition work' is the definition.
I can't tell whether this definition defines the answer.
'rule out bed and breakfast' is the wordplay.
'out' means one lot of letters goes inside another.
'bed and breakfast' becomes 'bb' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'rule' placed around 'bb' is 'RUBBLE'.
Can you help me to learn more?
(Other definitions for rubble that I've seen before include "Mass of rough fragments of brick or stone" , "Remains of demolished building" , "Light theatrical show" , "Stone/brick waste" , "Waste fragments of stone or rock, debris" .)