Socialist craftsman dancing (6)
I believe the answer is:
morris
I believe this clue is a double definition.
'socialist craftsman' is the first definition.
(I've seen this before)
'dancing' is the second definition.
(morris dancing is a kind of dancing)
(Other definitions for morris that I've seen before include "SECOND PART OF 17" , "William --, artist and author" , "William --, textile designer and novelist" , "Old English dance" , "William -, nineteenth century English craftsman and writer" .)