In hotel, going through a boring book (2,4)
I believe the answer is:
at home
'in' is the definition.
'hotel going through a boring book' is the wordplay.
I cannot really see how this works, but
'hotel' could be 'h' (phonetic alphabet: alpha, bravo, charlie etc.) and 'h' is present in the answer.
'a' is within the answer.
'book' could be 'tome' (a tome is a book) and 'tome' is located in the remaining letters.
This accounts for all the letters.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for at home that I've seen before include "Reception in one's own abode" , "Oh mate! (anag)" , "In one's own house" , "celebration" , "Where one lives" .)