With which to clean a second-class bedsit, say? (5)
I believe the answer is:
broom
'with which to clean a' is the definition.
I can't judge whether this defines the answer.
'second-class bedsit say?' is the wordplay.
'second class' becomes 'b'.
'bedsit say?' becomes 'room' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'b'+'room'='BROOM'
Can you help me to learn more?
(Other definitions for broom that I've seen before include "Yellow-flowering shrub" , "Leguminous shrub" , "Plant - sweeper" , "Sweeper (said twice for a car!)" , "Shrub and cleaning instrument" .)