This is a charade - look for parts of the clue that represent different components to be joined together in sequence
Break this into parts: 'hotel' gives you one letter (using the NATO phonetic alphabet), and 'land at the back' means to put a word for 'land' after that letter
Answer: HEARTH | H (hotel in NATO phonetic alphabet) + EARTH (land) placed 'at the back' = HEARTH (home/fireplace)