Possible Clues:

• 'Nice job!'
• "Nicely done!"
• Cry of approval ... and what the end of each answer to a starred clue is
• 'Good job!'
• "You did great!"
• Approach African country with expression of praise
• Expression of US approval, for Americans really like their takeaways
• "Nicely done"
• ''Nicely done''
• "Good job!" (and a hint to the beginning of 17-, 27-, 43- or 57-Across)