The most common and most likely answer to this crossword clue is the 10 letter word CLOTHESPIN
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Buddy explains!
The straight part
We know that "laundry helper?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case laundry helper? = clothespin.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.
What does CLOTHESPIN mean?
CLOTHESPIN noun- A clip or fastener used to secure garments to a clothesline while drying.
- To affix with a clothespin.