Crossword puzzle clue "coverage provider for you to discover four other places herein"

Coverage provider for you to discover four other places herein

Service found in the four longest Across answers herein

A crossword editor has to be very careful when changing one--unlike this puzzle's editor, who was careless four times herein

The other other other woman

Coverage provider named after a smoker

Big coverage provider

Coverage provider?

Provider of partial coverage?