Occupying room as on-off lodger, might you say? (5)
I believe the answer is:
mason
'lodger might you say?' is the definition.
I can't judge whether this definition defines the answer.
'occupying room as on-off' is the wordplay.
'occupying' says the answer is hidden in the clue (letters for the answer occupy part of the clue).
'MASON' is hidden in the letters of 'room as on off'.
Can you help me to learn more?
(Other definitions for mason that I've seen before include "A skilled worker in stone" , "Jewish comedian" , "Secret society member" , "member of charitable society" , "Stone-worker" .)