Related Clues:

• Mixes, as companies
• Opts for membership
• Gets into a single lane, say
• Blends
• Turns two into one
• Causes gridlock, perhaps
• Joins the competition?
• Becomes a member of
• Tricky highway maneuvers
• See 114-Across
• Enlists in
• Makes whole
• Integrates
• Blends or coalesces
• Blends with, integrates