Daring problem linked to uranium, say, on the radio (10)
I believe the answer is:
mettlesome
'daring' is the definition.
(thesaurus)
'problem linked to uranium say on the radio' is the wordplay.
'problem' becomes 'some' (I can't justify this - if you can you should give a lot more credence to this answer).
'linked to' is a charade indicator (letters next to each other).
'uranium say' becomes 'metal' (uranium is a kind of metal).
'on the radio' indicates a 'sounds like' (homophone) clue.
'metal' sounds like 'mettle'.
'some' after 'mettle' is 'METTLESOME'.
Can you help me to learn more?
(Other definitions for mettlesome that I've seen before include "game" , "High-spirited" , "Spirited, resilient" .)