Originating perhaps overseas, like Kathak, as a dance (5)
I believe the answer is:
polka
'a dance' is the definition.
(I know that polka is a type of dance)
'originating perhaps overseas like kathak as' is the wordplay.
'originating' says to take the initial letters.
The initial letters of 'perhaps overseas like kathak as' is 'POLKA'.
(Other definitions for polka that I've seen before include "Dance in fast time with three steps and a hop" , "Bohemian dance with three steps and a hop" , "Folk dance" , "Dot may be associated with this" , "Lively dance (but dotty?)" .)