She'll help hang out the washing (3)
I believe the answer is:
peg
'washing' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for peg that I've seen before include "The woman" , "Brandy and soda drink measure" , "Kind of clip for fastening clothes to line" , "Small dowel" , "Projecting pin" .)