Book accommodation for cleaner (5)
I believe the answer is:
broom
'for cleaner' is the definition.
(I've seen this before)
'book accommodation' is the wordplay.
'book' becomes 'b' (abbreviation for book).
'accommodation' becomes 'room' (eg a hotel room).
'b'+'room'='BROOM'
(Other definitions for broom that I've seen before include "Plant - sweeper" , "cleaner" , "Shrub and cleaning instrument" , "Flowering shrub" , "Yellow-flowering shrub" .)