| Answer | Crossword Clue |
|---|---|
| HUM | Sing without words |
| UTTER | Sing, without feeling? |
| CROON | Sing without full voice. |
| TROLL | Sing loudly without inhibition |
| LYRIC | Words you sing |
| HUM | Sing sans words |
| LYRIC | Words to sing |
| LALAS | What people sing when they don't know the words |
