Backing up British politician - the one on his bike! (4)
I believe the answer is:
pump
'his bike' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps you can see an association between them that I don't see?
'backing up british politician the one on' is the wordplay.
'backing' says the letters should be written backwards.
'british politician' becomes 'mp' (I am not sure about the 'british' bit.**).
'the one on' means one lot of letters go next to another.
'up' written backwards gives 'pu'.
'pu'+'mp'='PUMP'
Can you help me to learn more?
(Other definitions for pump that I've seen before include "Device for raising and moving liquid or gas" , "Compressing machine" , "Shoe - inflating device" , "Compressor, light shoe" , "The heart is one" .)