Related Clues:

• Does simple math
• Reckons
• Puts into words
• Puts into the mix
• Puts in extra
• Verbalizes
• Keeps talking
• Word with he or Simon
• Stirs in
• Does arithmetic
• Tosses into the mix
• Finds 23-Down
• Puts in the mix
• Gets to the bottom of things?
• Interjects