"Dancing Queen" group (4)
I believe the answer is:
abba
'dancing queen group' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for abba that I've seen before include "Father (NT)" , "Swedish artists" , "Eurovision winners" , "Coptic bishop's title; Swedish pop group" , "6 24 113 [SCAN-DIN-AVIAN] band" .)