Related Clues:

• Stereotypically "blind" official
• One who works at home, perhaps
• MLB arbiter
• One swinging in a box
• Rainout decider
• Caller in a mask
• Ref on the diamond
• Person staying near home
• Judge at home
• Tennis arbiter
• One in protective gear at home
• Replay Operations Center official
• Job requiring making lots of calls
• One working at home, for short
• Official on a baseline