Rare, bishop going to a dance (5)
I believe the answer is:
rumba
'dance' is the definition.
(I know this)
'rare bishop going to a' is the wordplay.
'rare' becomes 'rum' (rum can mean strange).
'bishop' becomes 'B' (chess abbreviation).
'going to' means one lot of letters go next to another.
'rum'+'b'+'a'='RUMBA'
(Other definitions for rumba that I've seen before include "number of steps" , "One from Cuba" , "Dance originating in Cuba" , "Latin beat" , "Lively Cuban dance" .)