Clue: Staying for the night in eastern North Dakota, American politician visits church (8)
Answer: ENCAMPED
Explanation: Definition: Staying for the night

**A** (American) **MP** (Member of Parliament, so "politician") *visits* **CE** ("Church" of England") *in* **E** (eastern) **ND** (North Dakota), so **E-N(C(A-MP)E)D