Possible Clues:

• "Bravo!"
• Well done course, not for consumption on the premises
• "Congratulations!"
• Approach African country with expression of praise
• Informal American expression of praise or encouragement
• "Nice job!" ... and, in another sense, a hint about the first words of 18-, 23-, 52- and 60-Across
• Compliment for a GPS manufacturer?
• Country supporting method that's great in America
• Route to a destination — preferred course of action
• ''Nice job!''