| FEELGOODFACTOR | Optimism and mounting joy ___ surrounded by grub, it may be multiplied (4-4,6) |
| GAMBIA | The ___; surrounded by Senegal, the smallest of the mainland African countries (6) |
| EATS | Seat damaged by grub (4) |
| LOOKGOOD | Inspire optimism and be appealing (4,4) |
| EIGHTHS | Fractions/amounts that can be multiplied by two to form quarters (7) |
| ELISION | Vocal cover-up and mounting interference stopped by individual's case (7) |
| ROARING | Characterised by prosperity, optimism, and excitement (7) |
| QUINTUPLICATE | Multiply or be multiplied by five (13) |
| FACTOR | A number that can be multiplied or divided to produce another (6) |
| TAXIDERMAL | Relating to the art of preparing, stuffing and mounting the skins of animals (10) |
| TAXIDERMY | The process of preparing, stuffing and mounting animal skins (9) |
| TAXIDERMIST | Practitioner of the art of preparing, stuffing and mounting skins (11) |
| ALBUM | What book is used in collecting and mounting stamps? (5) |
| HOPE | Optimism and energy in the wake of spring |
| HOPSCOTCH | Children's game needing endless optimism and spirit (9) |
| BREAD | Money could be multiplied according to auditor (5) |
| ONEHUNDREDTH | Anniversary that The New Yorker is celebrating in 2025 . . . or what the answers to the italicized clues in this puzzle have been multiplied by |
| ENAMOUR | Inspire fondness and mounting regret about the state (7) |
| ADAMSON | Joy ___, naturalist who authored books Born Free and Living Free (7) |
| TOTHEWORLD | Joy ____, carol written in 1719 by Isaac Watts (2,3,5) |
