| Clue | Length | Answer |
|---|---|---|
| Increment | 2 letters | up |
| Increment | 4 letters | rise |
| Increment | 5 letters | raise |
| Increment | 5 letters | surge |
| Increment | 6 letters | upturn |
| Increment | 6 letters | spread |
| Increment | 7 letters | uptrend |
| Increment | 7 letters | upsurge |
| Increment | 7 letters | upswing |
| Increment | 8 letters | swelling |
| Increment | 8 letters | widening |
| Increment | 9 letters | tailpiece |
| Increment | 10 letters | side-issue |
| Increment | 10 letters | tumescence |
| Increment | 10 letters | supplement |
| Increment | 11 letters | side-effect |
| Increment | 13 letters | proliferation |
| Increment | 13 letters | reinforcement |
| Increment | 14 letters | productiveness |
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