Some jobshare politicians turned up for work (5)
I believe the answer is:
opera
'work' is the definition.
(musical work)
'some jobshare politicians turned up' is the wordplay.
'some' indicates a hidden word (some parts of the word are used).
'turned up' says the letters should be written in reverse.
'arepo' is hidden within 'jobshare politicians'.
'arepo' backwards is 'OPERA'.
'for' acts as a link.
(Other definitions for opera that I've seen before include "Musical stage work" , "Carmen, for instance" , "Staged event" , "Met show?" , "Musical extravaganza" .)