Send up Californian politician over working (7)
I believe the answer is:
lampoon
'send up' is the definition.
(thesaurus)
'californian politician over working' is the wordplay.
'californian politician' becomes 'lamp' (I can't justify this - if you can you should give a lot more credence to this answer).
'over' becomes 'o' (cricket abbreviation).
'working' becomes 'on' (on can mean working or activated).
'lamp'+'o'+'on'='LAMPOON'
Can you help me to learn more?
(Other definitions for lampoon that I've seen before include "Piece of writing that ridicules someone" , "joke" , "Make fun of" , "Satirical work" , "Satirical personal attack" .)