Hunting the hunter

2. suddenly, unexpectedly, and often in a way that seems rude or unfriendly
3. move in a spiral course
6. the state or fact of existing, occurring, or being present in a place or thing
7. say something in answer to a remark or accusation
9. diverge or spread from or as if from a central point.
11. an act of asking for information.
12. bubble up as a result of being boiled.
14. person who travels some distance to work on a regular basis
16. in a careful or cautious manner
18. forming, or situated at the end or extremity of something.

1. join or fasten (plates of metal) with a rivet or rivets
2. anxiety or fear that something bad or unpleasant will happen
4. excited and full of energy
5. Not formally promised or committed
8. a state of nervous excitement or inability to relax
9. make a harsh, grating noise
10. deriving from or affected by uncontrolled extreme emotion
13. having or revealing an exaggerated sense of one's own importance or abilities.
15. having or showing calmness in a crisis.
17. a straight line between two places.