Family on radio taking their bow? (7)
I believe the answer is:
archers
I believe this clue is a double definition.
'family on radio' is the first definition.
(in BBC radio drama The Archers)
'taking their bow?' is the second definition.
(an archer uses a bow and arrow)
(Other definitions for archers that I've seen before include "Part of army once" , "Bowmen on BBC radio?" , "media family" , "Her cars, oddly, use bows and arrows" , "Old combatants" .)