Crossword Puzzle Expand the viewed area, in a way

Clue: Expand the viewed area, in a way

Theater area (e.g. AISLE with 5 letters)
Area of influence (e.g. AMBIT with 5 letters)
Area of India (e.g. ASSAM with 5 letters)
Tea-growing area in India (ASSAM with 5 letters)
NYC area, informally (BORO with 4 letters)
N.Y.C. theater area (BWAY with 4 letters)
International airport area (CUSTOMS with 7 letters)
Area of India's capital (DELHI with 5 letters)
Area including China, Korea and Japan (EASTASIA with 8 letters)
___ Theory (hypothesis that modern humans came from a single area) (EVE with 3 letters)