1. area of economic activity (8 letters)
INDUSTRY
2. car display area (8 letters)
SHOWROOM
3. linguistics subfield (9 letters)
PHONETICS
4. suffering indigestion (9 letters)
DYSPEPTIC
5. period of rule (5 letters)
REIGN
6. type of pitching motion (7 letters)
SIDEARM
7. act the part of (7 letters)
PORTRAY