Old motor manufacturer's dance? (6)
I believe the answer is:
morris
'dance?' is the definition.
(Morris dancing)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for morris that I've seen before include "(Country) dance; William ---, craftsman/socialist" , "English folk dance performed by men in costume" , "William --, English designer and novelist" , "SECOND PART OF 17" , "socialist craftsman" .)