| Indefinite number |
| American actress who became Princess consort of Monaco |
| Indefinite tense |
| Became inedible |
| A plus, definitely |
| Indefinite word |
| '60s sitcom setup, part 3: Then the five passengers and two crewmen became ___ |
| Became oblivious |
| Indefinite article |
| Rocky Balboa foe who became his friend |
| Became expressionless |
| Became alert |
| Epoch in which mammals became dominant |
| Definitely not needing a haircut |
| Indefinite person |
| Decide upon definitely |
| About to get a Ph.D., definitely, if not this year then sometime in the next five |
| Became apparent |
| Became a burdensome guest |
| What Apple's Project Purple became |
| Hathaway who became Jane in "Becoming Jane |
| Player of the national pastime who became a National |
| Became a winter hazard, as a road |
| Epoch in which grazing mammals became widespread |
| Definite blessing |
| Ultimately became |
| Argentine "Hey!" that became a noted nickname |
| ___ & AJ (pop duo that became 78violet) |
| Its initials became its name in 1999 |
| Alcindor who became Abdul-Jabbar |