Related Clues:

• Block border
• Boulevard
• Rail transport
• Manhole setting
• Thomas the Tank Engine, for one
• Stickball venue, usually
• Learn the ropes
• Do the drill bit
• Use the gym
• Houston, e.g.
• Practice punches
• Line on an address form
• See 22 Down
• Focus (on)
• The El, e.g.