The most common and most likely answer to this crossword clue is the 6 plus 7 letter word CARPET SWEEPER
I've seen this crossword clue in Financial Times
C
A
R
P
E
T
S
W
E
E
P
E
R
More clues leading to the result CARPET SWEEPER
- Keen after favourites put in tender for cleaner
- Cleaner, one in tears after reprimands
- Cleaner animals show distress, seized by nurse
- Reprimands keener cleaner
- Cleaner reprimands mourner
- Cleaner range kept by nameless woodworker
- Cleaner reprimands person in tears
- One complaining must accept maybe dog’s little cleaner
- Cleaner scolds one crying
- Chew out soccer player that cleans up
Buddy explains!
The straight part
We know that "that cleans up" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case that cleans up = carpet sweeper.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.