Tory minister working over rising colleague in hurry (3,1,4,2)
I believe the answer is:
get a move on
'hurry' is the definition.
(I've seen this in another clue)
'tory minister working over rising colleague' is the wordplay.
'tory minister' becomes 'Gove' (Conservative politician Michael Gove).
'working' becomes 'on' (e.g. a machine is working or on).
'over' indicates putting letters inside.
'rising' shows that the letters should be reversed in order (in a down clue, letters go up).
'colleague' becomes 'mate' (mate can mean a colleague or friend).
'mate' back-to-front is 'etam'.
'gove'+'on'='goveon'
'goveon' placed around 'etam' is 'GET A MOVE ON'.
'in' acts as a link.
(Other definitions for get a move on that I've seen before include "shift" , "Speed up" , "quickly!" , "Hurry up (colloq.)" .)