VERB + MOP-UP
need
MOP-UP + NOUN
aisle, operation
PREP.
in, on
noun
An instance of mopping up; a cleaning or finishing off.
We need a mop-up on aisle 3. [store intercom announcement]
Another armored division was called in for the mop-up operation.
The cleanup of an area by removing burning material, felling dead trees, securing logs from moving, etc.
i Register
In some senses, mop-up is marked as informal. Watch for register when choosing this word.