Related Clues:

• Person who's critical at first
• Fellow who works at home
• Tennis ''out'' caller
• Watch a lot of plays, say
• He calls balls and strikes
• One making calls from home?
• "ut"shouter
• "Out" shouter
• Baseball official, briefly
• Baseball "ref"
• Home worker?
• Worker calling strikes
• One who might be second-guessed by instant replays
• Stereotypically 'blind' official, for short
• One of a MLB quartet