Various kingfishers, maybe (6)
I believe the answer is:
divers
I believe this clue is a double definition.
'various' is the first definition.
(thesaurus)
'kingfishers maybe' is the second definition.
(birds which dive)
(Other definitions for divers that I've seen before include "Various; frogmen" , "Some water-birds; assorted" , "Several; snorkellers" , "competitors at the Olympic Games?" , "ducklike birds" .)