Related Clues:

• Postfixes, e.g.
• Determines a sum
• Supplements the recipe
• Throws on
• Puts two and two together?
• Tosses in
• Uses postscripts
• Heralds
• Computes columns
• Elaborates
• Sums it up
• Folds in
• Mixes in
• Foots a column
• Under-the-tree items