| Like Wilde's wit | 20 |
| Like some terrible reviews | 26 |
| Like some rain | 14 |
| Lennon's drug choice | 24 |
| Lemon juice, e.g. | 17 |
| Lactic or xanthic | 17 |
| Lab liquid | 10 |
| Kind of rain or rock | 20 |
| Jimi Hendrix's rock genre | 29 |
| Its pH is below 7 | 17 |
| It's dropped for kicks | 26 |
| It's done at psychedelic shows | 34 |
| It reddens litmus paper | 23 |
| It may have been dropped at Woodstock | 37 |
| It has a pH below 7 | 19 |
| Inspiration for Hunter S. Thompson | 34 |
| Indicated by a litmus test | 26 |
| Hydrofluoric ___ | 16 |
| Hydrochloric, e.g. | 18 |
| Hydrochloric solution | 21 |
| Hydrochloric or amino, e.g. | 27 |
| Hydrochloric e.g. | 18 |
| Having a pH below 7 | 19 |
| Folic, for one | 14 |
| Folic, e.g. | 11 |
| Folic for one | 14 |
| Fatty _____ | 11 |
| Etching stuff | 13 |
| Etching chemical | 16 |
| Etching aid | 11 |
| Etcher's substance | 22 |
| Etcher's liquid | 19 |
| Etcher's buy | 16 |
| Enamel eroder | 13 |
| Eating stuff | 12 |
| Destructive rain | 16 |
| Destructive kind of rain | 24 |
| Corrosive battery chemical | 26 |
| Cause of sour disposition | 25 |
| Cause of much bellyaching? | 26 |
| Carbolic ___ | 12 |
| Breakdown cause | 15 |
| Boric, e.g. | 11 |
| Boric follower | 14 |
| Boric ___ | 9 |
| Bicarbonate target | 18 |
| Beyond sarcastic | 16 |
| Beginning to a bad rain? | 24 |
| Battery substance | 17 |
| Battery refill | 14 |
| Base antagonist? | 16 |
| Ascorbic or sulphuric | 21 |
| Ascorbic ___ | 12 |
| Aqua fortis, e.g. | 17 |
| Aqua fortis | 11 |
| Amino or hydrochloric | 21 |
| Amino or boric chaser | 21 |
| Amino attachment | 16 |
| Alternative to mushrooms? | 25 |
| Alkali's opposite | 21 |
| Alkali counter | 14 |
| Agent for many a trip | 21 |
| Acetic, for one | 15 |
| Acetic __ | 9 |
| A lot of music from the '60s was made on it | 47 |
| A kind of test | 14 |
| "The Electric Kool-Aid ___ Test" | 42 |
| "I'm the gypsy, the ___ queen" | 44 |
| _____ rain | 10 |
| ___ wash jeans | 14 |
| ___ rain (lake pollutant) | 25 |
| ___ rain | 8 |
| Like lemons | 11 |
| Like sour grapes | 16 |
| Like grapefruit juice | 21 |
| Like citrus juices | 18 |
| Very harsh | 10 |
| Tart to the taste | 17 |
| Like apple juice | 16 |
| Having a low pH | 15 |
| With a low pH | 13 |
| Not basic | 9 |
| Not alkaline | 12 |
| Like vinegar or grapefruit juice | 32 |
| Like orange juice, say | 22 |
| Like orange juice | 17 |
| Like citrus fruit | 17 |
| Hardly basic | 12 |
| Forming a sour compound | 23 |
| Far from basic? | 15 |
| Acid-forming | 12 |
| Stomach problem | 15 |
| Sourness | 8 |
| Tartness | 8 |
| Basic chemistry subject | 23 |
| What pH measures | 16 |
| Sour character | 14 |
| pH measure | 10 |
| Milk of magnesia target | 23 |
| Indigestion source | 18 |