It’s high in housing (5)
I believe the answer is:
attic
'it's high in housing' is the definition.
I know that 'high' relates to this answer.
'it's high in housing' is the wordplay.
'high' indicates anagramming the letters (can mean drunk or on drugs and hence disordered).
'in' becomes 'atc' (I can't explain this - if you can you should believe this answer much more).
'housing' indicates putting letters inside.
'it' anagrammed gives 'ti'.
'ti' going inside 'atc' is 'ATTIC'.
Can you help me to learn more?
(Other definitions for attic that I've seen before include "Floor" , "High level of" , "room with lots of junk?" , "Top apartment" , "Greek - upper room" .)