Dangerous raid, oddly, on broadcaster (5)
I believe the answer is:
risky
'dangerous' is the definition.
('risky' can be similar in meaning to 'dangerous')
'raid oddly on broadcaster' is the wordplay.
'oddly' indicates alternate letters.
'on' is a charade indicator (letters next to each other).
'broadcaster' becomes 'sky' (Sky is a television company).
The alternating letters of 'raid' are 'ri'.
'ri'+'sky'='RISKY'
(Other definitions for risky that I've seen before include "Potentially dangerous" , "Having possibility of danger or loss" , "Treacherous" , "taking a chance" , "Unsafe" .)