Enter a clue or pattern or both:
The Clue
Interject (3 letter answer)
The Answer
ADD
Tags
Notes
The answer ADD is seen frequently, appearing about once every 60 puzzles.
Related Clues
Append
Augment
Build (on)
Connect
Continue
Contribute
Interpose
Join to
Put in
Put on
Stick in
Tack on
Tag on
Total
Do sums
Find the sum
Foot up
Form a sum
Go on to say
Recipe direction
Recipe word
Say more
Say in a postscript
Tally (up)
Tot up
Use a calculator
Word on a dipstick
Write, as a P.S.
Do sum thing?
Make sense, with "up"
Put together, in a way
Put 2 and 2 together
Put two and two together
Tendency for one's mind to wander, for short