Cancel the clean-up! (5)
I believe the answer is:
scrub
I believe this clue is a double definition.
'cancel' is the first definition.
(scrub can mean to cancel or erase)
'the clean-up' is the second definition.
(I've seen this before)
(Other definitions for scrub that I've seen before include "Stunted growth" , "something in the garden?" , "Clean vigorously - stunted vegetation" , "Scour - stunted trees" , "Clean, low vegetation" .)