Do a shock clean-up job? (3)
I believe the answer is:
mop
'job?' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe there's a link between them I don't understand?
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for mop that I've seen before include "Wet cleaner" , "Clean; mass of hair" , "Bundle of soft material at end of stick for cleaning" , "Floor cleaner" , "Instrument for cleaning" .)