Type of Concertinaed Bonnet of the 18th-19th C
Puzzle 16 of Tricky Spelling Pack
Question is: Type of Concertinaed Bonnet of the 18th-19th C
and the answer is: CALASH
Word Meaning:
CALASH — (historical) Alternative form of calèche (“type of carriage with low wheels”).
Definitions from Wiktionary.