Maybe house rival briefly in temporary accommodation (8)
I believe the answer is:
tenement
'accommodation' is the definition.
(I've seen this before)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for tenement that I've seen before include "Dwelling-place" , "Undesirable housing" , "Apartment in a US block" , "Large building divided into separate apartments" , "Flat" .)