Cleaner goes round everything in dance hall (8)
I believe the answer is:
ballroom
'dance hall' is the definition.
('ballroom' can be a synonym of 'dance hall')
'cleaner goes round everything' is the wordplay.
'cleaner' becomes 'broom' (I've seen this before).
'goes round' means one lot of letters goes inside another.
'everything' becomes 'all' (I've seen this before).
'broom' enclosing 'all' is 'BALLROOM'.
'in' is the link.
(Other definitions for ballroom that I've seen before include "Place for old-fashioned dancing - and romance?" , "Place for dance" , "Dance hall" , "hop in here?" , "potential murder scene on board" .)