Young scout to turn in radio (3)
I believe the answer is:
cub
'young scout' is the definition.
(I've seen this in other clues)
'turn in radio' is the wordplay.
'turn' becomes 'U' (a 'U-turn' is a kind of turn).
'in' indicates putting letters inside.
'radio' becomes 'cb' (I can't justify this - if you can you should believe this answer much more).
'u' inserted inside 'cb' is 'CUB'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for cub that I've seen before include "Young of certain animals" , "Junior scout; puppy" , "Young newspaper reporter" , "Baby animal, bear say" , "cheeky youngster" .)