Related Clues:

• In utero (anag)
• Everyday procedure
• "Business as ___"
• Regular customer's order (with "the")
• American gangster entertains union leader? That's common!
• Unextraordinary
• The ___ (customary order)
• *Dive, surface, dive, surface, etc.?
• Undervalues without vender in general
• Socrates leaves assault course for run-of-the-mill
• Performance is popular, in a way
• It's normal for you to be submerged in American letters at league
• Regular's request, with "the"
• Sounds like something barman might ask regular?
• Not surprising