Answer:

ADD

Answer	Crossword Clue
ADD	Sum up
ADD	Get sum?
ADD	Recipe word

ADD	Stick on
ADD	Supplement
ADD	Tack on
ADD	Tally
ADD	Total
ADD	Tote up
ADD	Do some carrying, maybe
ADD	Recipe instruction

ADD	2 + 2, e.g.
ADD	Be calculating
ADD	Put more in
ADD	Put two and two together, maybe
ADD	Tot up
ADD	Recipe directive
ADD	Incorporate
ADD	Put in the soup, say

ADD	Combine figures
ADD	Mention
ADD	Offer as a bonus
ADD	Say a bit more
ADD	Do sums
ADD	Annex
ADD	Put two and two together
ADD	Find the bottom line

ADD	Get totaled
ADD	Augment
ADD	Recipe verb
ADD	Toss into the mix
ADD	Contribute
ADD	Use a calculator
ADD	Write a P.S.
ADD	Do sumthing?

ADD	Throw in
ADD	Toss in
ADD	Include, as a dash of cinnamon
ADD	Find sumthing?
ADD	Get sumwhere?