Sleeveless Dress Worn Over a Blouse
Puzzle 20 of Jane Austen Hard Pack
Question is: Sleeveless Dress Worn Over a Blouse
and the answer is: PINAFORE
Word Meaning:
PINAFORE — A sleeveless dress, often similar to an apron, generally worn over other clothes, and most often worn by young girls as an overdress.
Definitions from Wiktionary.