Related Clues:

• Counts (up)
• Makes new friends?
• Accountant does it to a theologian at school
• Makes sense (with "up")
• Finds sums
• Writes as a postscript, say
• Drops in the bucket, perhaps
• Counts on one's fingers introductions to attention deficit disorder at school
• Contributes further
• Goes on to say Breaking Dad is on stage first
• Does a summer job?
• Boosts the total
• Contributes to the total
• Puts runs on the board
• Sums up what a running batsman does