| SOLUTION | Answer to a problem, riddle or equation (8) |
| TICKLER | A cane; a dram of spirits; a feather-brush; a memorandum; a trout-guddler; or, a difficult problem, riddle or other perplexing, poking, stimulating, titillating or vellicating person/thing (7) |
| CONUNDRUM | Difficult problem; riddle |
| QUADRATIC | Function or equation (9) |
| FORMULA | Method or equation (7) |
| STRAINER | A filter such as a colander, sieve, riddle or tea-leaves catcher (8) |
| FIENDISH | Extremely cruel, or very awkward in relation to a problem (8) |
| CONFRONT | Face up to (a problem) |
| ABSOLUTION | What cleric gives, or a bishop: the answer to a problem (10) |
| MOTTO | From the Latin for "murmur" and the Italian for "word", a slogan such as that encapsulating a family's beliefs on their coat of arms; a quotation prefacing a book or chapter; or, a joke, riddle or scr |
| TESTSOLUTION | The base for drug analysis from international match provides answer to a problem (4,8) |
| SOLVE | Produce an answer to a problem (5) |
| SOLVED | Worked out an answer to a problem (6) |
| RESOLUTION | Concerning answer to a problem decision (10) |
| RESOLVE | Find an answer to (a problem) (7) |
| SCREEN | An ornamental partition separating a church's choir from its nave and surmounted by a rood; a sheltering row of pleached trees; or, a large riddle or sieve (6) |
| TEASER | Conundrum, puzzle or riddle; or, a type of advert or pre-launch campaign designed to rouse interest whilst remaining cryptic (6) |
| KOAN | A nonsensical riddle or puzzle upon which to meditate in Zen as a means to enlightenment (4) |
| ENIGMA | From Latin via Greek for "speak allusively", word for a riddle or obscure speech originally, later a mysterious or puzzling person or thing (6) |
| PROBLEM | Puzzle, riddle or question set forth for solution; climber's route or sequence of moves in bouldering; or, a chess composition (7) |
