A little progress in dancing (4)
I believe the answer is:
step
This clue is a triple definition!
'a little' is the first definition.
(thesaurus)
'progress' is the second definition.
(thesaurus)
'in' is a link.
'dancing' is the third definition.
(step dancing is a kind of dancing)
(Other definitions for step that I've seen before include "Place foot on as with a pest" , "Single pace" , "Prefix meaning related by remarriage" , "one stage of flight" , "Gradation" .)