Crossword Genius

Do a shock clean-up job? (3)

Ross

I believe the answer is:

mop

I'm a little stuck... Click here to teach me more about this clue!

'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" .)

I've seen this clue in the Evening Standard.
Want a hint initially instead of a full solution? Install my app