One lives next to the back of drab chain hotel (4)
I believe the answer is:
ibis
'chain hotel' is the definition.
'Ibis' can be an answer for 'hotel' (French hotel chain). I am not sure about the 'chain' bit.
'one lives next to the back of drab' is the wordplay.
'one' becomes 'i' (Roman numeral).
'lives' becomes 'is' ('be' can be a synonym of 'live').
'next to' is a charade indicator (letters next to each other).
'the back of' indicates one should take the final letters.
The final letter of 'drab' is 'b'.
'is' put after 'b' is 'bis'.
'i'+'bis'='IBIS'
Can you help me to learn more?
(Other definitions for ibis that I've seen before include "Flier" , "One has large bill" , "Wader worshipped by ancient Egyptians" , "seaside feeder?" , "Sacred Egyptian bird" .)