Answer: chalks

AnswerCrossword Clue
CHALKSAscribes, with "up"
CHALKSDecorates the sidewalk, maybe
CHALKSUses the blackboard
CHALKSRecords, with "up"
CHALKSPrepares, as a pool cue
CHALKSSchool supply
CHALKSWhitens
CHALKSScores, with "up"
CHALKSWrites on a blackboard
CHALKSReadies, as a pool cue
CHALKSScores, as a victory, with "up"
CHALKSAttributes (to), with "up"
chalkspiece of chalk, used to write on blackboards
chalksCHALK, to mark with soft limestone
chalkssoft, powdery white limestone
chalksto mark with chalk