Vertical
1. undertake a journey or trip
2. taking a series of rhythmical steps (and movements) in time to music
3. the act of traveling by foot
5. the cultivation of plants
7. located, suited for, or taking place in the open air
10. an event that involves rising to a higher point (as in altitude or temperature or intensity etc.)
Horizontal
4. the act of preparing something (as food) by the application of heat
6. a game in which two teams hit an inflated ball over a high net using their hands
8. an enthusiastic devotee of sports
9. a sport that involves exercises intended to display strength and balance and agility
11. a person who contributes to the fulfillment of a need or furtherance of an effort or purpose
12. the act of someone who fishes as a diversion