| Answer | Crossword Clue |
|---|---|
| ORDINAL | It's part of a series |
| SONATA | It's a series of movements |
| JUMPTHESHARK | Pass its peak, slangily, as a TV series |
| CSI | TV series that, like its two spinoffs, has a theme song by The Who |
| STEP | Part of a series. |
| EPISODE | Part of a series |
| OVERTONE | Part of a harmonic series |
| EPISODEI | First part of a series |
| GASTRO | Part of a GI series? |
| ONESHOT | Not part of a series |
| AMAT | Part of a conjugative series |
| ENSUITE | As part of a series |
| EPISODE | Part of a TV series |
| LETAFOOL | Part 1 of a maxim by Publilius Syrus, hinted at by the series of circled letters |
