| Answer | Crossword Clue |
|---|---|
| ATONAL | Hard-to-hum |
| ATONAL | Hard-to-hum, say |
| ATONAL | Hard to hum, perhaps |
| ATONAL | Really hard to hum along to |
| MELODY | Something to hum |
| SONG | Something to hum |
| DITTIES | Things to hum |
| TUNE | Something to hum |
| SONG | Thing to hum |
| TUNE | Thing to hum or whistle |
| LLAMAS | Mothers who hum to their newborns |
| SAMEOLD | Ho-hum response to "What's new?" |
| SAM | To whom Ilsa said "I'll hum it for you" |
