| Answer | Crossword Clue |
|---|---|
| PREBOARD | Get on in advance, as an airplane |
| PREWARM | Heat in advance, as an oven |
| PREELECT | Choose in advance, as an unopposed candidate |
| ANTS | People on the ground, to people in an airplane |
| BASSES | As singers, they get on swimmingly in a school (6) |
