Hotelier has this — it may be associated with room service for breakfast? (3-2)
I believe the answer is:
lie-in
'it may be associated with room service for breakfast?' is the definition.
(you might have a lie-in and get room service)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for lie-in that I've seen before include "Extra snoozing" , "Period in bed longer than usual" , "Extra zeds in the morning" , "Extended overnight rest" , "time spent with crossword, perhaps" .)