Danes designed chair (5)
I believe the answer is:
sedan
'chair' is the definition.
(sedan chair is a type of chair)
'danes designed' is the wordplay.
'designed' indicates an anagram (designed with the letters).
'danes' with letters rearranged gives 'SEDAN'.
(Other definitions for sedan that I've seen before include "Dean's in an old conveyance" , "Chair to be carried by two" , "Old portable chair for Danes" , "Where Prussians defeated French" , "In cars, an alternative name for 'saloon'" .)