The most common and most likely answer to this crossword clue is the 8 letter word TWIN-TUB
T
W
I
N
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T
U
B
More clues leading to the result TWIN-TUB
- Pair, however, returned washing machine
- Old cleaner puts bag in back seat
- Revolving part of a gun that’s about to get two revolvers in one?
- Succeed in race, then use bath primarily as a washing machine
- TweedledumSave up for a washing machine
- Containing a lot of drink, cask overturned – use this to wash
- Domestic help initially tasted success, but leant back later
- Get to load part of gun up — a revolver?
Buddy explains!

The straight part
We know that "Domestic help" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case domestic help = twin-tub.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.