Answer: adder

AnswerCrossword Clue
ADDERPoisonous snake
ADDEREuropean viper
ADDERColumnist?
ADDERDangerous snake
ADDERSummer
ADDERPuff ..
ADDERCalculator, at times
ADDEROne doing sums
ADDERSnake with a puff variety
ADDERScary snake
ADDERKind of viper
ADDERReptile with a nasty bite
ADDERSomeone doing sums
ADDERSum kind of snake?
ADDERCalculating person?
ADDERPocket calculator, e.g.
ADDERPuff ... (dangerous snake)
ADDERDangerous slitherer
ADDERNorthern copperhead, for one
ADDERSummer at the office
addersmall venomous snake
ADDERHognose snake
ADDERHarmless crawler
ADDERPuff .. (venomous viper)
ADDERViper
ADDERMilk snake
ADDERFirst grader, math-wise
ADDERVenomous viper
ADDERVenomous snake
ADDERAbacus user
ADDERCommon viper
ADDERCalculating snake?
ADDERSnake
ADDERMathematical snake?
ADDERSnake that counts?
ADDERAbacus, at times?
ADDERSerpent
ADDERDeadly viper
ADDERSnake that does sums?
ADDERSnake with venom