| Radio figure who co-wrote "Two Guys Four Corners" | 59 |
| Radio Fibber | 12 |
| Radio features | 14 |
| Radio feature, sometimes | 24 |
| Radio feature | 13 |
| Radio favorite of yore | 22 |
| Radio faddist | 13 |
| Radio factor | 12 |
| Radio executive Karmazin | 24 |
| Radio equipment | 15 |
| Radio enthusiast | 16 |
| Radio drama "of mother love sacrifice" | 48 |
| Radio Dr. | 9 |
| Radio DJ Rick | 13 |
| Radio divisions | 15 |
| Radio dials | 11 |
| Radio dial letters | 18 |
| Radio dial | 10 |
| Radio device | 12 |
| Radio designation | 17 |
| Radio deejay's supply, once | 31 |
| Radio couple at 79 Wistful Vista | 32 |
| Radio countdown host Casey | 26 |
| Radio Corporation of America, for short | 39 |
| Radio Corp. of America, briefly | 31 |
| Radio converting device | 23 |
| Radio components | 16 |
| Radio component | 15 |
| Radio comic Joe | 15 |
| Radio comedian dubbed "The Perfect Fool" | 50 |
| Radio comedian Allen | 20 |
| Radio code word | 15 |
| Radio code sound | 16 |
| Radio code for "A" | 28 |
| Radio clown and actor Pickens | 29 |
| Radio City, for one | 19 |
| Radio City's architectural style | 36 |
| Radio City Music Hall style | 27 |
| Radio City Music Hall fixture | 29 |
| Radio City Music Hall feature | 29 |
| Radio City letters | 18 |
| Radio choices: Abbr. | 20 |
| Radio choices | 13 |
| Radio choice | 12 |
| Radio chatter? | 14 |
| Radio characters from Bismarck? | 31 |
| Radio character who "knows" | 37 |
| Radio character voiced by Orson Welles | 38 |
| Radio character voiced by John Todd | 35 |
| Radio character | 15 |
| Radio censor's sound | 24 |
| Radio CD players | 16 |
| Radio carrier | 13 |
| Radio buttons | 13 |
| Radio button, e.g. | 18 |
| Radio button | 12 |
| Radio buffs | 11 |
| Radio buddy | 11 |
| Radio broadcaster: Abbr. | 24 |
| Radio broadcast: Abbr. | 22 |
| Radio broadcast options | 23 |
| Radio broadcast interference | 28 |
| Radio broadcast | 15 |
| Radio bribe | 11 |
| Radio booth warning | 19 |
| Radio booth sign | 16 |
| Radio blast from the past | 25 |
| Radio bands | 11 |
| Radio band, for short (HEF anagram) | 35 |
| Radio band switch | 17 |
| Radio audience | 14 |
| Radio appurtenance | 18 |
| Radio antennas | 14 |
| Radio antenna | 13 |
| Radio annoyance | 15 |
| Radio announcer's blunder | 29 |
| Radio announcer Husing | 22 |
| Radio and TV, e.g. | 18 |
| Radio and TV | 12 |
| Radio and television org. with francophone offerings | 52 |
| Radio and television | 20 |
| Radio and newspapers, e.g. | 26 |
| Radio and Disco, e.g. | 21 |
| Radio amateurs | 14 |
| Radio advice-giver | 18 |
| Radio adventure series | 22 |
| Radio adjunct | 13 |
| Radio ad | 8 |
| Radio actress turned South American first lady | 46 |
| Radio actress Rich et al. | 25 |
| Radio actor Soule | 17 |
| Radio activity? | 15 |
| Radio abbr. | 11 |
| Radio "good buddy" | 28 |
| Radii-paralleling bones | 23 |
| Radii, e.g. | 11 |
| Radii's partners | 20 |
| Radii relatives | 15 |
| Radii partners | 14 |
| Radii of wheels | 15 |